Journal articles: 'Chemical ABsorbent'

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Zilberman, P. "The CO2 Absorber Based on LiOH." Acta Medica Marisiensis 61, no. 1 (March 1, 2015): 4–6. http://dx.doi.org/10.1515/amma-2015-0023.

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AbstractCarbon dioxide absorbers have been used in anesthesiology for many years. However, this process is not limited to this field of medicine. Removing carbon dioxide from human environment is used in other areas as well: mining industry, submarines, scuba diving, space travel and many others. The rationale to remove carbon dioxide from confined spaces is that cannot be eliminated otherwise. Anesthesia practitioners are well aware of this component of the circle system, the carbon dioxide absorber. In daily practice the clinician is less concerned with what kind of substance fills the dedicated canister, as this is usually in the care of the maintenance personnel. The appearance of Sevoflurane and Desflurane, with their own chemical characteristics, prompted the clinician to dedicate new attention to these absorbents. The classical substances used for this purpose are different combinations of limes. The practical concern of the anesthesiologist is to notice when the absorbent is consumed and call for its replacement. Still, many other aspects remain: compound A formation with Sevoflurane, carbon monoxide formation with Desflurane and dry absorbent for instance. The latest member of these products in the medical field is the LiOH carbon dioxide absorbent. Although used for many years in the space exploration, its way into the operating room is a rather recent achievement. Special chemical properties and high absorptive capacity make this new type of absorbent an attractive option for modern anesthesia practice. The article below invites the reader through a short journey on the history of the CO2 absorbents and anesthesia circuits, Lithiumas a chemical element and, finally, to this new type of absorbent.

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Wardhana, Krisna Adhitya, Saepulloh Saepulloh, and Reynaldo Biantoro. "Pemanfaatan Lumpur Primer Industri Kertas sebagai Absorben." JURNAL SELULOSA 8, no. 01 (October 16, 2018): 9. http://dx.doi.org/10.25269/jsel.v1i01.220.

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The Utilization of Primary Sludge from Paper Mills as AbsorbentAbstractThe primary sludge from paper mill contains cellulose fiber that has high absorption capacity and potential to be used as an absorbent for hydrophobic compounds. The utilization of primary sludge from paper mill using raw material of waste paper and virgin pulp to be used as an absorbent has been conducted. The stages process of absorbent fabrication was consisted of three stages such as drying, mechanical and chemical processes. Mechanical process conducted were crushing and grinding methods to increase surface area and pore volume of sludge. Meanwhile silanization process as chemical treatment using solution of γ-metacryloxypropyl trimethoxysilane in ethanol to improve the hydrophobic properties of primary sludge was also done. Absorbent products were tested for the maximum sorbency, the sorbent performance, absorption of hydrophobic liquid, absorption of hydrophobic dust, and contact angle test to conduct their performance. The absorbency of absorbent product which is covered by cushion material was also tested. Result indicated that the absorption performance of some absorbent product is higher than commercial absorbent on hydrophobic liquid and hydrophobic dust absorption test. But it was lower than commercial absorbent on maximum sorbency and the sorbent performance test. The use of cushion material as a wrapper could make it easy in the collection and could increase the absorbency.Keywords: primary sludge; mechanical; silanization; absorbent; hydrophobic AbstrakLumpur primer dari industri kertas mengandung serat selulosa yang memiliki daya serap tinggi dan memiliki potensi dimanfaatkan sebagai absorben senyawa hidrofobik. Pemanfaatan lumpur primer industri kertas berbahan baku kertas bekas dan virgin pulp sebagai absorben telah dilakukan. Tahapan proses pembuatan absorben dari lumpur primer meliputi proses pengeringan, proses mekanis, dan proses kimia. Proses mekanis yang dilakukan adalah crushing dan grinding untuk meningkatkan luas permukaan dan volume pori-pori lumpur dilanjutkan dengan proses silanisasi (silanization) sebagai perlakuan kimia menggunakan larutan γ-metacryloxypropyl trimethoxysilane dalam etanol untuk meningkatkan sifat hidrofobik lumpur. Produk absorben diuji daya serap maksimum (maximum sorbency), kinerja absorben, penyerapan cairan hidrofobik, penyerapan debu hidrofobik, dan pengujian sudut kontak. Daya serap produk absorben yang ditutup bahan bahan cushion juga diuji. Hasil menunjukkan kemampuan absorbsi cairan hidrofobik dan debu hidrofobik dari beberapa perlakuan produk absorben lebih tinggi dari absorben komersial, sedangkan hasil maximum sorbency dan uji kinerja absorben menunjukkan hasil lebih rendah dari absorben komersial. Penggunaan bahan cushion sebagai pembungkus dapat memudahkan dalam pengumpulan dan dapat meningkatkan penyerapan.Kata kunci: lumpur primer; mekanis; silanisasi; absorben; hidrofobik

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Arunkumar, V., K. Krishnamurthy, C. Maheswari, B. Meenakshipriya, and R. Vinoth. "Removal of NOX from diesel engine exhaust by using different chemical absorbent in a lab-scale packed column system." Measurement and Control 52, no. 7-8 (June 24, 2019): 1095–101. http://dx.doi.org/10.1177/0020294019858167.

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Emissions of NOX from automobile causes various environmental impacts. In order to satisfy the emission norms and standards, it is necessary to reduce the toxic gases from emission. This paper concentrates on designing a packed column and analysis on the selection of an effective absorbent to reduce NOX emission from diesel engines. NOX emission is taken from the exhaust of diesel engine (Kirloskar TV1 Diesel engine). Flue gas inlet to the packed column and the treated gas at the outlet of the packed column are measured using NOX inlet and outlet gas sensors, respectively. Absorbent flow is carried out in a lab-scale packed column experimental setup. Various parameters of the packed column such as liquid: gas ratio, diameter, total height and packing height are determined based on the mathematical modeling. The NOX emission was experimentally measured with various combinations of different absorbents with different flow rate. Based on the experiments, effective absorbents are chosen as NaClO2 and NaOH. Experimental results show chemical absorbent combination with 0.5 M concentration of sodium chlorite and 0.3 M concentration of sodium hydroxide at 80% data acquisition card opening condition is absorbing NOX effectively.

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Purnawan, Irfan, Sutrasno Kartohardjono, Levana Wibowo, Annisa Faiza Ramadhani, Woei Jye Lau, and Arifina Febriasari. "Effect of Absorbents on NOx Removal through Polyvinylidene Fluoride (PVDF) Hollow Fiber Membrane Modules." International Journal of Chemical Engineering 2021 (August 16, 2021): 1–8. http://dx.doi.org/10.1155/2021/8277082.

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NOx (NO and NO2) are air toxins that endanger life and represent a hazard to the environment, such as photochemical smog, global warming, acid rain, ozone depletion, and the occurrence of respiratory infections. Some technological strategies to diminish NOx emissions to meet regulations depend on two techniques: the dry process and the wet process. This study applies polyvinylidene fluoride (PVDF) hollow fiber membrane modules as a medium to remove NOx from solutions containing several absorbents such as hydrogen peroxide and nitric acid (H2O2-HNO3) solutions, sodium chlorite and sodium hydroxide (NaClO2-NaOH) solutions, and sodium chlorate and sodium hydroxide (NaClO3-NaOH) solutions. The experimental results showed that the oxidant’s strength influences NOx removal efficiency, where the absorbent solutions containing hydrogen peroxide had the highest removal efficiency as hydrogen peroxide is the most potent oxidant, followed by sodium chlorite and sodium chlorate. The three pairs of absorbents also gave a high NOx removal efficiency (above 90%), which means that all the absorbents used in the study are very potential to be used to diminish NOx via the wet process. NOx removal efficiency at the same feed gas flow rate increased as the number of fiber and absorbent concentrations is increased. However, NOx removal efficiency is reduced as the feed gas flow rate is increased at the same membrane module and absorbent concentration.

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Jung, Ga-young, Seul-gi Lee, Jun-seo Lee, and Byung-chol Ma. "Experimental Study on Absorption Behavior and Efficiency of Brine in Hazardous Gas Absorption Treatment." ChemEngineering 6, no. 1 (January 4, 2022): 4. http://dx.doi.org/10.3390/chemengineering6010004.

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There have been studies recently on bubble-column scrubbers with low cost and high efficiency for the absorption and treatment of hazardous gases in the event of a chemical spill. Bubble columns are vulnerable to freezing at temperatures below zero because the absorbents generally do not circulate. To address this issue, this study focused on the applicability, absorbed amount, and performance of brine as an absorbent. Under three different temperatures, i.e., −5 °C, −8 °C and −10 °C we examined brine (NaCl, CaCl2, and MgCl2) by varying the concentration required at each temperature. Following the experiments, CaCl2 brine was determined as the optimal brine for its absorption performance and affordability. Based on the experimental results, the absorption performance for ammonia, ethylene oxide, and methylamine, which are hazardous and water-soluble gases among accident preparedness substances (APS), was tested by using ASEPN PLUS. Our results suggested although the efficiency dropped by about 5% to 25% when brine was used as an absorbent, it can be used at the low temperatures because the gas solubility increased with decreasing temperature. Therefore, if brine, as an alternative, is used at temperatures about 15 °C, it can operate efficiently and stably without deterioration in the absorption performance. Given our experimental results and design data on the absorbed amount and absorbent replacement period for major hazardous gases are utilized to prevent bubble columns from freezing, it can be commercially used for small and medium-sized enterprises because it can help reduce installation and operation costs.

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Roslan, H. S., A. N. Mustapa, S. H. Hanipah, A. B. Alias, F. M. Fuad, Á. Martín, and M. J. Cocero. "Characteristics of alginate and soy protein isolates composite aerogels as oil absorbent." IOP Conference Series: Materials Science and Engineering 1257, no. 1 (October 1, 2022): 012045. http://dx.doi.org/10.1088/1757-899x/1257/1/012045.

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Abstract Treating oil spill occurrence is crucial because of the toxic effects on marine life and the environment. Hence, absorption is used for a low-cost oil recovery process, simple mechanism, and sustainability to mitigate such occurrence. Synthetic absorbent is always associated with its poor degradability, which may cause water to turn toxic. Natural materials have been foreseen as excellent absorbent due to their cost-effectiveness, sustainability, and less environmental harm. In this work, alginate/soy protein isolates (SPI) aerogels are synthesized, undergo surface modification with methyltrimethoxysilane (MTMS) and tetraethyl orthosilane (TEOS) solution, and then dried by supercritical CO2 at 110 ± 5 bar and 40 °C in 4h to produce aerogels absorbent. The synthesized absorbents were analyzed via FTIR, TGA, DSC, FESEM, contact angle and oil absorption analysis to determine their physical and chemical properties. Results demonstrated that the hydrophilic surface of the alginate/soy protein isolate could be tailored in a simple surface modification process. Its oil absorption capacity towards the engine oil can reach a range of 9.1-12.1 g/g, comparable to most reported natural absorbents. Thus, the findings in this study show that alginate/ SPI aerogels may have potential as an industry oil absorbent.

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Knyazeva, A. K., M. N. Rakhimov, N. G. Evdokimova, and R. F. Akhmetov. "Selection of the Absorbent and Technological Parameters of the Natural Gas Purification Process with Equal Ratio of Acid Components." Chemistry and Technology of Fuels and Oils 631, no. 3 (2022): 31–34. http://dx.doi.org/10.32935/0023-1169-2022-631-3-31-34.

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Natural gas from most fields contains undesirable acid impurities (hydrogen sulfide and carbon dioxide). The removal of these impurities is traditionally carried out by absorption purification using various absorbents, most often alkanolamines. The main factor influencing the choice of absorbent is the component composition of natural gas (the content of acidic components and their ratio).The paper presents the results of modeling a natural gas purification unit in order to select an absorbent and optimal technological parameters of the process. Studies of the purification process of natural gas with an equal ratio of acidic componentswith monoethanolamine, diethanolamine, methyldiethanolamine and diethanolamine + methyldiethanolamine absorbents were carried out. Based on the results obtained, the technological parameters of the process using an effective absorbent are presented.The results of the analysis of the influence of the main technological parameters on the consumption of energy resources in the process of regeneration of the selected absorbent are also given

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Gilassi, Sina, and Nejat Rahmanian. "CFD Modelling of a Hollow Fibre Membrane for CO2 Removal by Aqueous Amine Solutions of MEA, DEA and MDEA." International Journal of Chemical Reactor Engineering 14, no. 1 (February 1, 2016): 53–61. http://dx.doi.org/10.1515/ijcre-2014-0142.

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AbstractA mass transfer model was developed to capture CO2 from a gas mixture in hollow fibre membrane contactors under laminar flow conditions. The axial and radial diffusions through membrane and convection in tube and shell sides with chemical reaction were investigated. COMSOL software was used to numerically solve a system of non-linear equations with boundary conditions by use of the finite element method. Three different amine solutions of monoethanolamine (MEA), diethanolamine (DEA) and n-methyldiethanolamine (MDEA) were chosen as absorbent in lumen to consider the mass transfer rate of CO2 and its removal efficiency. The modelling results were compared with experimental data available in the literature and a good agreement was observed. The CFD results revealed that MEA had the best performance for CO2 removal as compared to DEA and MDEA under various operating conditions due to the different CO2 loading factor of absorbents. Furthermore, efficiency of CO2 removal was highly dependent on the absorbent concentration and flow rate, increasing of the gas flow rate caused a reduction in gas residence time in the shell and consequently declined CO2 mass transfer. The modelling results showed the effect of absorbent concentration on the CO2 mass transfer was improved due to availability of absorbent reactants at the gas-liquid interface.

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Thamsiriprideeporn, Chanakarn, and Suekane Tetsuya. "Effects of Alkanolamine Absorbents in Integrated Absorption–Mineralization." Minerals 12, no. 11 (October 30, 2022): 1386. http://dx.doi.org/10.3390/min12111386.

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Integrated absorption–mineralization (IAM) involves the transformation of CO2 in a chemical-based solution with brine used as the absorbent to form insoluble carbonates and is promising for carbon capture, utilization, and storage. Various types of absorbents such as monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA), and aminomethyl propanol (AMP) were examined in multicycle integrated absorption–mineralization (multicycle IAM) involving absorption, precipitation, and regeneration steps between 20 °C and 25 °C at atmospheric pressure in order to reveal their performance in terms of CO2 absorption and conversion and absorbent degradation. We found that 5 wt.% AMP offered 89.5% CO2 absorption capacity per unit of absorbent converted into the amount of solid carbonate within 4 cycles. In addition, it was moderately degraded by 64.02% during the first cycle and then reduced from 30% to 10% in the next cycle (>2 cycles). In comparison with MEA, which was used as the initial absorbent, AMP provided a fivefold increase in the speed of multicycle IAM.

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Kim, Myung-Gyun, Hyun-Wook Hwang, Antony Nzioka, and Young-Ju Kim. "Enhanced lipid extraction from microalgae in biodiesel production." Chemical Industry 71, no. 2 (2017): 167–74. http://dx.doi.org/10.2298/hemind160327027k.

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In order to secure more effective lipid extraction method, this research investigated new lipid extraction method using laser with absorbent and sought its optimum operation control. In addition, this study compared lipid extraction efficiency and FAME conversion rate between laser extraction method at optimum condition and existing extraction method. Results from experiments for optimizing lipid extraction method using laser showed that the maximum extraction efficiency (81.8%) was attained when using laser with an output capacity of 75Wh/L. Extraction efficiency increased up to 90.8% when microwave treatment as pretreatment process was conducted. Addition of absorbents during lipid extraction process with laser showed higher extraction efficiency than laser and chemical method. It was also found that laser extraction method with absorbent had higher total fatty acid content (853.7 mg/g oil) in extracted lipid than chemical extraction method (825.4 mg/g oil). Furthermore, it had the highest FAME conversion rate (94.2%).

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Li, Jia Zhu Li, Zhan Bin Huang, Yuan Yuan Feng, and Wei Chen. "Interactive Effects of Super Absorbent Polymer and Nitrate Nitrogen." Advanced Materials Research 598 (November 2012): 323–27. http://dx.doi.org/10.4028/www.scientific.net/amr.598.323.

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The superfluous application and low use efficiency of chemical nitrate nitrogen fertilizer account for the nitrogen pollution of soil and water, threatening human’s health. In order to raise the fertilizer use efficiency, prevent from non- point pollution and nitrogen pollution of groundwater, and select superior material, five different kinds of super absorbent polymer (SAP) were selected as the objects. Through the analysis of the characteristics change of water and fertilizer absorbing of the five SAPs within different concentration of NO3--N, and the discussion of interactive effects between the SAPs and NO3--N, it is showed that: the water absorbent ability of all kinds of SAP exhibits a negative relationship with the concentration of KNO3 by decreasing of more than 50%. For all the five types of SAPs, the type of polyacrylate shows the strongest ability of water absorbing in all kinds of KNO3 concentration and the type of humic acid- polyacrylate is least affected by saline solution. The type of PAM- inorganic mineral SAP does well in nitrogen absorbing, whose absorbing amount linearly increases with the KNO3 concentration increasing, while the other types of SAP shows no obvious ability for nitrogen absorbing.

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Ye, Yi, Xinglei Zhao, Jian Chen, and Mengxiang Fang. "Pilot-Scale Experimental Study of a New High-Loading Absorbent for Capturing CO2 from Flue Gas." Processes 10, no. 3 (March 19, 2022): 599. http://dx.doi.org/10.3390/pr10030599.

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Chemical absorbents with low-energy requirements have become the primary focus of the research on CO2 capture from flue gas in power plants. To verify the absorption performance of the NICE absorbent developed by the National Institute of Clean-and-Low-Carbon Energy in China, a performance optimization test was conducted in Zhejiang University’s pilot-scale platform, and the effects of the liquid–gas ratio, regeneration pressure, rich liquid fractional flow, and interstage cooling on the absorption performance and regeneration energy consumption were investigated. The results showed that in the CO2 pilot test, the optimized minimum regeneration energy consumption was 2.85 GJ/t CO2, and the corresponding process parameters were as follows: a liquid–gas ratio of 1.82 L/m3, regeneration pressure of 191 kPa, an interstage cooling temperature of 40 °C, and a rich liquid fractional flow ratio of 0.18. This study preliminarily verified the low-energy consumption performance of the NICE absorbent and showed its good potential for industrial applications. Additionally, the NICE absorbent showed promise for capital and operating cost savings because of its low liquid–gas ratio.

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Nguyen, Xuan Phuong, Dinh Tuyen Nguyen, Van Viet Pham, and Dinh Tung Vo. "HIGHLIGHTS OF OIL TREATMENT TECHNOLOGIES AND RISE OF OIL-ABSORBING MATERIALS IN OCEAN CLEANING STRATEGY." Water Conservation & Management 6, no. 1 (2022): 06–14. http://dx.doi.org/10.26480/wcm.01.2022.06.14.

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Nowadays, the problem of oil pollution is becoming a big challenge for the environment. Oil pollution threatens the survival of life on land as well as aquatic life. Aware of the seriousness of oil pollution, there have been many scientific studies on solutions to oil spill treatment. The methods can be mentioned as mechanical treatment, microbiological treatment, chemical treatment, absorbent material treatment. Each method has its advantages and disadvantages. In this short review, recent research activities related to the selection of oil-absorbing absorbents and their application in oil absorption are presented. Then, an extensive list of different oil-absorbing materials from the literature, including polymeric materials, porous inorganic materials, and biomass materials, was provided along with their characteristics. Furthermore, the oil adsorption capacity of such materials for different oils and organic solvents has also been discussed to highlight different factors involved in the selection of adsorbent adsorbents. Oil has been tested to separate oil in oil-water mixtures. Finally, some future trends and prospects for oil-absorbing materials are outlined.

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Sormunen-Cristian, Riitta, and Päivi Mannerkorpi. "Feeding value of grass ensiled with absorbents assessed in growing lambs." Agricultural and Food Science 6, no. 2 (May 1, 1997): 173–82. http://dx.doi.org/10.23986/afsci.72780.

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Four absorbent materials incorporated into grass at ensiling were compared in terms of their effects on silage quality, effluent production, diet digestibility, ad libitum intake and growth of lambs. The materials used (50 kg t-1 grass) to retain silage effluent flow were molassed and unmolassed sugar beet shreds (MSBS, SBS), a commercial product (CP) based on MSBS (75%) and wheat bran (20%), and rolled barley (RB). With the exception of MSBS and a control (C2), all silages were ensiled with formic acid solution. Unmolassed sugar beet shreds were also ensiled with a granulated formic acid product (grFA). The silages were fed to 56 Finnish Landrace lambs for 21 days. Silage effluent retention rates were similar (1.44-1.55 kg kg-1 absorbent) for the sugar beet shred-based absorbents but zero for RB. The organic matter digestibilities of the diets were not affected (p>0.05) by the silage absorbent treatment. The digestibility of SBS silage was, however, improved by grFA as an additive. Silage intake was generally increased by absorbent inclusion, and was about 29% higher in lambs receiving silages treated with sugar beet shreds than in those receiving untreated silages. The daily growth rate of lambs was highest with the SBS treatment (124 g) followed by SBS ensiled with grFA (108 g) and MSBS (86 g); it was lowest with RB (36 g). With regard to effluent chemical oxygen demand, digestibility and silage intake, the use of SBS as an absorbent material is recommended by ensiling with either liquid or grFA.

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Cen, Ru Feng, Kun Yan Wang, and Wen Wen Shu. "Preparation and Swelling Properties of Organoclay/Super-Absorbent Resin Using Polyacrylonitrile Fiber Wastes." Advanced Materials Research 1120-1121 (July 2015): 635–38. http://dx.doi.org/10.4028/www.scientific.net/amr.1120-1121.635.

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A series of novel organoclay(OMMT)/super-absorbent resin composites were prepared using the waste of PAN fibers at alkaline hydrolysis condition with Al2(SO4)3 as cross-linker. The effects of OMMT content on the chemical structure and degradation of the super-absorbent resin were investigated. The swelling behavior was also evaluated. The swelling rates of super-absorbent resin went up with increasing OMMT loading to 3wt% and then decreased with further increasing OMMT loadings. OMMT-based super-absorbent resin might have potential applications in many areas, such as construction engineering and hygienic products.

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Cusick, G. E., and Teresa Hopkins. "ABSORBENT INCONTINENCE PRODUCTS." Textile Progress 20, no. 3 (March 1990): 1–34. http://dx.doi.org/10.1080/00405169008688949.

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Zhang, Wenlin, Jinping Luo, Tengfei Sun, Fengshou Yu, and Chunli Li. "The Absorption Performance of Ionic Liquids–PEG200 Complex Absorbent for VOCs." Energies 14, no. 12 (June 16, 2021): 3592. http://dx.doi.org/10.3390/en14123592.

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A novel complex absorbent composed of polyethylene glycol 200 (PEG200) and ionic liquids (ILs) was prepared for the absorption of volatile organic compounds (VOCs) such as dichloromethane (DCM) and benzene. We prepared complex absorbents composed of [EMIM][Cl], [BMIM][Cl], [HMIM][Cl], [BMIM][BF4], [BMIM][PF6], [BMIM][NTF2], and PEG200, respectively, and studied the absorption properties of these six complex absorbents for DCM and benzene. The results show that under the optimized situation, the absorptivity of [HMIM][Cl]–PEG200 complex absorbent for DCM is 85.46% in the first 5 min, and 87.15% for benzene. No obvious decay in the absorptivity of [HMIM][Cl]–PEG200 for DCM and benzene was observed in five cycles, indicating an impressive regeneration performance. Furthermore, the mechanism of ionic liquid absorption for VOC is explored by thermodynamic analysis and quantum chemical calculations. The theoretical calculation results show that the [HMIM][Cl]–DCM interaction is stronger than the [HMIM][Cl]–benzene interaction, which is consistent with the results of the absorption experiment. Moreover, the strong hydrogen bonds can be formed between both [HMIM][Cl]–DCM and [HMIM][Cl]–benzene.

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Asefa, Misikir Tamiru, and Gebisa Bekele Feyisa. "Comparative Investigation on Two Synthesizing Methods of Zeolites for Removal of Methylene Blue from Aqueous Solution." International Journal of Chemical Engineering 2022 (February 12, 2022): 1–12. http://dx.doi.org/10.1155/2022/9378712.

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Organic dyes discharged from industries have significant effect on ecosystem and health of human being because of their toxicity and appearing colour in the wastewater. Absorption method is a more preferable method than other wastewater treatment methods due to its characteristics of being eco-friendly, simple, and efficient. Zeolites are among the porous materials often used as absorbent of organic dye from wastewater. However, wide use of zeolite has been limited due to its expensive precursors and synthesized methods (i.e., hydrothermal method which needs expensive autoclave). In this work, cheap and widely available precursors aluminum from waste food packaging aluminum foil and low cost silica from sugar cane bagasse ash were used to synthesized zeolite without hydrothermal method (Z-B), where hydrothermally synthesized zeolite (Z-A) was used as a reference. The XRD patterns revealed that Z-B was sodalite octahydrate zeolite and Z-A was zeolite Linde Type A (LTA). The morphology and type of bond in both zeolites were investigated by SEM and FTIR. The synthesized zeolites were used as absorbents for absorbing methylene blue (MB) from aqueous solutions. The MB removal efficiency of the synthesized zeolites was evaluated by using UV-Visible spectroscopy. The results indicate that the absorption capacities of Z-B and Z-A were 3.5 mg/g and 3.9 mg/g at 40 mg/L, respectively. Optimum removal efficiencies of both zeolites were observed at PH of 7 and adsorbent dosage of 0.005 mg/L. The stabilities of both zeolites were tested three times. The absorption isotherms of sodalite octahydrate zeolite and zeolite LTA were effectively fitted with the Freundlich and Langmuir modes. Moreover, the absorption kinetics of both zeolites follow pseudo-second-order kinetics. Therefore, nonhydrothermally synthesized zeolite is alternative absorbent for dye removal due to its safety, cheap cost, using low cost and widely available precursors, and using easy and safe synthesizing method.

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Yokoyama, Seiji, Nik Hisyamudin Muhd Nor, and Shunsuke Hirano. "Chemical Property of Ground Calcium Carbonate as Carbon Dioxide Absorbent." Materials Science Forum 654-656 (June 2010): 2923–26. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.2923.

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Commercial sedimentation CaCO3 was ground by a vibration rod mill to investigate the physicochemical properties of mechanically activated CaCO3.When the CaCO3of the calcite structure was ground, the intensities of the crystal facesof calcite was decreased by distortions and so on, and the aragonite appeared as the grinding proceeded. The formed aragonite was transformed to the calcite when the sample was heated at 773K for3.6 ks. The dissociation pressure of CO2 of the ground CaCO3was larger than that of the non-ground CaCO3.The enthalpy; entropy and specific heat of change of the dissociation reaction were obtained. At high temperature, the emission rate of the ground CaCO3 was slightly larger than that of the non-ground CaCO3. At room temerature, the CaCO3 adsorbs CO2, and it desorbs the adsorbed CO2. The amount of adsorbed CO2 on the ground CaCO3 was larger than that of the non-ground CaCO3.

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Ohashi, T., K. Nakagawa, and K. Essaki. "High Temperature CO_2 Removal Technique using Novel Solid Chemical Absorbent." Proceedings of the National Symposium on Power and Energy Systems 2000.7 (2000): 43–48. http://dx.doi.org/10.1299/jsmepes.2000.7.43.

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Salemi, Niloofar, Seyed Mehdi Abtahi, Mohammad Ali Rowshanzamir, and Seyed Mehdi Hejazi. "Improving hydraulic performance and durability of sandwich clay liner using super-absorbent polymer." Journal of Sandwich Structures & Materials 21, no. 3 (May 22, 2017): 1055–71. http://dx.doi.org/10.1177/1099636217707559.

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The hydraulic performance and durability of geosynthetic clay liner containing various amounts of sodium polyacrylate polymer are experimentally studied. Sodium polyacrylate, generally known as a super-absorbent polymer, is a polymeric material with a potential of high water absorbance due to its chemical structure. In this study, sodium polyacrylate powder is used as a partial replacement of bentonite as much as 3%, 5% and 7% by the weight of bentonite. For comparison, the hydraulic performance of geosynthetic clay liner without super-absorbent polymer is also experimented. Atterberg limits, free swell index, hydraulic conductivity, self-healing capacity and wet/dry cycle tests are conducted in order to assess how super-absorbent polymer can affect the performance of geosynthetic clay liners as landfill liners and covers. The results show that the hydraulic conductivity and self-healing capacity of geosynthetic clay liner are relatively enhanced by super-absorbent polymer inclusion. The results of wet/dry cycle test show that using super-absorbent polymer as a partial replacement of bentonite considerably improves the durability of geosynthetic clay liner against wet/dry cycles. Geosynthetic clay liner containing super-absorbent polymer shows a negligible increase in hydraulic conductivity while there is a noticeable increase in hydraulic conductivity of specimen without super-absorbent polymer after 10 cycles of wetting and drying.

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Yang, Yadie, and Hong Hu. "Spacer fabric-based exuding wound dressing – Part II: Comparison with commercial wound dressings." Textile Research Journal 87, no. 12 (July 12, 2016): 1481–93. http://dx.doi.org/10.1177/0040517516654110.

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In this study, a three-layered composite structure based on spacer fabric was designed for absorbent wound dressings. The fabrication and selection of spacer fabrics were discussed in Part I. In this part, two selected spacer fabrics were further modified by covering a polyurethane or a polystyrene electrospun nanofibrous membrane onto their outer layer surface to form the final spacer fabric-based dressing products. In order to confirm the performance of these new spacer fabric-based dressings, the comparisons were conducted with three types of commercial wound dressings. The comparison indicators included the water contact angle, wettability, absorbency, air permeability and water vapor transmission rate. The results showed that in addition to very good water vapor and air permeability, the developed spacer fabric-based dressings had better absorbing properties than commercial foam dressings. Furthermore, their wettability was also good for application as wound dressings. The study has paved a new way to produce advanced wound dressings using three-dimensional textile structures.

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Tyumentseva, I. S., E. N. Afanas`ev, L. V. Lyapustina, O. I. Kogotkova, I. V. Zharnikova, V. I. Efremenko, D. A. Budyka, N. F. Vasilenko, E. E. Afanas`eva, and A. N. Kulichenko. "Immune-Magnetic Absorbents Used for Express Diagnosis of Dangerous Infectious Diseases: Biotechnology Aspects and Experience of Application." Problems of Particularly Dangerous Infections, no. 3(101) (June 20, 2009): 59–61. http://dx.doi.org/10.21055/0370-1069-2009-3(101)-59-61.

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Compositional micro-grained immune-magnetic absorbents (IMA) were obtained on the basis of silica - aluminocilicate, modified by polyglucin and sodium secondary alkylsulphate. IMA were shown to possess high adsorption activity due to their developed surface and implanted specific ligand, standard structural features, mechanical reliability, chemical and microbiological stability. The existence of magnetic material provided facilitation and convenience of operations with absorbents in analysis performance. Applying of IMA allowed to release of any mixtures with their adverse effect on reaction during samples preparing by means of rinsing the absorbent with fixed infected agent on it; concentrating the unknown pathogen to the extent possible increased the specificity and sensitivity of express-analysis methods (EIA and PCR), the time spending for analysis reduced substantially (up to 1-3hours).

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Zhang, Yingying, Xuzhao Yang, Jingli Han, Junfeng Tian, Ting Zhang, Yakun Li, Jiangqiang Zhang, Yuxin Shi, and Jingjing Zhang. "Screening of Pure ILs and DESs for CO2 Separation, N2O Separation, and H2S Separation Processes." International Journal of Chemical Engineering 2023 (February 18, 2023): 1–20. http://dx.doi.org/10.1155/2023/8691957.

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Ionic liquids (ILs) are proposed as potential “green” solvents with remarkable properties. Deep eutectic solvents (DESs) are a new type of ILs with additional properties, such as higher biodegradability and a lower price. ILs and DESs are “green” absorbents for various gas separations, such as CO2/N2, CO2/H2/CO, H2S/CH4, and N2O/N2. Due to their large number, the screening of ILs is crucial. Although ILs with high absorption capacities were screened using gas solubility and selectivity, it is important to consider the energy and solvents used in the process. In this paper, the absorbent amount and the energy consumption were used for screening absorbents for various gas separation processes. The results reveal that physical IL [Bmim][DCA] and chemical IL [Eeim][Ac] are screened for CO2/N2 and CO2/H2/CO separation, physical IL [Omim][PF6] for H2S/CH4 separation, and physical IL [P66614][eFAP] for NO/N2 separation. The screened ILs offer some advantages over commercial absorbents in terms of lower energy consumption or amount.

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Zhang, Jie, and Yun Xue. "Hydrophobic Expanded Perlite Used in External Insulation of the Building Engineering." Applied Mechanics and Materials 584-586 (July 2014): 1835–38. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.1835.

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The expanded perlite lightweight, non-toxic, non flammable, good insulation properties, and chemical stability, corrosion resistance, low cost, its application more widely. But after absorbing its high water absorption and the freeze-thaw resistance shortcomings significantly reduced as building insulation materials, especially in the cold and cold regions is very restricted. Expanded perlite products with hydrophobic technology, the advantages of both ordinary expansion perlite products, but also solve the problem of absorbent easy and freeze-thaw resistance poor, as the application of external insulation materials in building engineering has been expanded.

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Ye, Fang, Li Tong Zhang, Xiao Wei Yin, Ya Jun Zhang, Yong Sheng Liu, and Lai Fei Cheng. "Dielectric Property of Si₃N₄/SiBCN Composite Ceramics Doped with SiC." Advanced Materials Research 748 (August 2013): 91–95. http://dx.doi.org/10.4028/www.scientific.net/amr.748.91.

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Si3N4/SiBCN composite ceramics were prepared by infiltrating and pyrolyzing liquid polyborosilazane in porous Si3N4 ceramics. To increase their wave-absorbing ability, SiC nanoparticles and SiC film obtained by chemical vapor infiltration were separately introduced into the composite ceramics. The surface morphology, element and phase composition of ceramics were analyzed by means of scanning electron microscopy, energy dispersive spectrometer and X-ray diffraction. Dielectric and electromagnetic wave absorbing property researches show that the permittivity and dielectric loss of the ceramics were effectively improved and the electromagnetic reflection coefficient was visibly decreased when SiC was loaded. It is indicated that SiC is an effective dielectric lossy absorbent, and the Si3N4/SiBCN composite ceramics containing SiC possess the great potential in the application of wave-absorbing material.

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Varaprasad, Kokkarachedu, Dariela Nunez, Murali Mohan Yallapu, Tippabattini Jayaramudu, Elizabeth Elgueta, and Patricio Oyarzun. "Nano-hydroxyapatite polymeric hydrogels for dye removal." RSC Advances 8, no. 32 (2018): 18118–27. http://dx.doi.org/10.1039/c8ra01887a.

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Nakhjiri, Ali Taghvaie, and Amir Heydarinasab. "CFD Analysis of CO2 Sequestration Applying Different Absorbents Inside the Microporous PVDF Hollow Fiber Membrane Contactor." Periodica Polytechnica Chemical Engineering 64, no. 1 (January 23, 2019): 135–45. http://dx.doi.org/10.3311/ppch.13172.

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The sequestration process of greenhouse contaminants such as CO2 via hollow fiber membrane contactor (HFMC) is regarded as a promising technology to manage the deleterious impressions of CO2 on environment such as global warming and air pollution. This investigational paper renders a wide-ranging 2D simulation in order to assess the removal performance of CO2 from CO2/CH4 gaseous stream (containing 80 % CH4 and 20 % CO2) in the HFMC. As the novelty, the evaluation of CO2 acid gas removal from gaseous mixture applying four novel absorbing agents (potassium threonate (PT), piperazine (PZ), pure water (H2O) and methyldiethanolamine (MDEA)) is implemented in the HFMC with the aim of introducing a more efficient liquid absorbent for CO2 sequestration. Model validation is done based on the comparison of mathematical model outcomes and experimental data in a wide range of H2O velocity and confirms a desirable agreement with an average relative deviation (ARD) of approximately 3 % for CO2 flux. It is perceived from the results that PZ is introduced as the most efficient liquid absorbent for CO2 sequestration and MDEA, PT and H2O are in the next category (100 % removal using PZ > 96 % removal using MDEA > 89 % removal using PT > 57 % removal using H2O). The results corroborate that increase in membrane tortuosity and gas velocity negatively affects the sequestration process while increment of module length and porosity improve the separation of CO2.

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ESAKI, Takehiro, and Noriyuki KOBAYASHI. "Evaluation of Reaction rate for chemical heat chiller with hydration absorbent." Proceedings of the National Symposium on Power and Energy Systems 2016.21 (2016): D215. http://dx.doi.org/10.1299/jsmepes.2016.21.d215.

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Davidzon, M. I., and L. N. Maurin. "Mass transfer in capillaries with absorbent walls." Journal of Engineering Physics 50, no. 3 (March 1986): 302–5. http://dx.doi.org/10.1007/bf00870124.

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Wu, Ri Na, Hu Zhu, and Bei Hai He. "Dissolution of Absorbent Cotton in Ionic Liquid and Characterization of the Regenerated Cellulose." Advanced Materials Research 830 (October 2013): 163–66. http://dx.doi.org/10.4028/www.scientific.net/amr.830.163.

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Dissolution of absorbent cotton (DP above 4000) using ionic liquids as solvent and regeneration was investigated. The results show that 1-ally-3-methylimidazolium chloride (AMIMCl) was a good solvent to dissolve absorbent cotton and a solution of 3 wt% can be reached in 18 min at 120°C. Besides, as the dissolving temperature increased the time needed for the cotton linters to dissolve decreased. The physic-chemical properties of the regenerated cellulose films were also characterized by XRD, FTIR and TGA analysis.

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Lu, Xiaoqing, Dongliang Jin, Shuxian Wei, Zhaojie Wang, Changhua An, and Wenyue Guo. "Strategies to enhance CO2capture and separation based on engineering absorbent materials." Journal of Materials Chemistry A 3, no. 23 (2015): 12118–32. http://dx.doi.org/10.1039/c4ta06829g.

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Strategies to enhance CO₂capture and separation based on state-of-the-art adsorbent materials have been proposed by topological structure design, chemical doping, chemical functionalization, open metal sites, and electric fields. This review presents a constructive way for the design and screening of novel adsorbent materials.

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Baxter, Pamela J., Kyle Garton, and Evan D. Kharasch. "Mechanistic Aspects of Carbon Monoxide Formation from Volatile Anesthetics." Anesthesiology 89, no. 4 (October 1, 1998): 929–41. http://dx.doi.org/10.1097/00000542-199810000-00018.

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Background Desflurane, enflurane and isoflurane can be degraded to carbon monoxide (CO) by carbon dioxide absorbents, whereas sevoflurane and halothane form negligible amounts of CO. Carbon monoxide formation is greater with drier absorbent, and with barium hydroxide, than with soda lime. The mechanism, role of absorbent composition and water, and anesthetic structures determining CO formation are unknown. This investigation examined sequential steps in anesthetic degradation to CO. Methods Carbon monoxide formation from anesthetics and desiccated barium hydroxide lime or soda lime was determined at equimole and equiMAC concentrations. Carbon monoxide formation from deuterium-substituted anesthetics was also quantified. Proton abstraction from anesthetics by strong base was determined by deuterium isotope exchange. A reactive chemical intermediate was trapped and identified by gas chromatography-mass spectrometry. The source of the oxygen in CO was identified by 18O incorporation. Results Desflurane,enflurane,andisoflurane(difluoromethylethyl ethers), but not sevoflurane (monofluoromethyl ether), methoxyflurane (methy-ethyl ether), or halothane (alkane) were degraded to CO. The amount of CO formed was desflurane > or = enflurane > isoflurane at equiMAC and enflurane > desflurane > isoflurane at equimole concentrations. Proton abstraction from the difluoromethoxy carbon was greater with potassium than with sodium hydroxide, but unmeasurable with barium hydroxide. Carbon monoxide formation was correlated (r = 0.95-1.00) with difluoromethoxy (enflurane > desflurane > isoflurane > or = methoxyflurane = sevoflurane = 0) but not ethyl carbon proton abstraction. Deuterium substitution on enflurane and desflurane diminished CO formation. Chemical trapping showed formation of a difluorocarbene intermediate from enflurane and desflurane. Incorporation of H2(18)O in barium hydroxide lime resulted in C18O formation from unlabeled enflurane and desflurane. Conclusions A difluoromethoxy group is a structural requirement for haloether degradation to CO. Results are consistent with initial base-catalyzed difluoromethoxy proton abstraction (potassium > sodium hydroxide, thus greater CO formation with barium hydroxide lime vs. soda lime) forming a carbanion (reprotonated by water to regenerate the anesthetic, hence requirements for relatively dry absorbent), carbanion decomposition to a difluorocarbene, and subsequent difluorocarbene reaction to form CO.

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Zhang, Hui, Yuqi Li, Yaoguang Xu, Zexiang Lu, Lihui Chen, Liulian Huang, and Mizi Fan. "Versatile fabrication of a superhydrophobic and ultralight cellulose-based aerogel for oil spillage clean-up." Physical Chemistry Chemical Physics 18, no. 40 (2016): 28297–306. http://dx.doi.org/10.1039/c6cp04932j.

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To deal with marine oil spillage and chemical leakage issues, a highly efficient absorbent (cellulose based aerogel) with a low density (ρ < 0.034 g cm⁻³, φ > 98.5%) and high mechanical strength was fabricated via a novel physical–chemical foaming method, plasma treatment and subsequent silane modification process.

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Sun, Shi Yong, Fa Qin Dong, Jia Luo, Ting Ting Huo, and Li Zhu Liu. "Preparation Biomagnetic Sorbent for Cleaning Crude Oil Spills." Advanced Materials Research 518-523 (May 2012): 3057–60. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.3057.

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The objective of this study is preparing a novel environmental friendly light weight magnetic sorbent consisting of bacteria and cobalt by chemical process to further cleaning crude oil spills in sea. The observations by ESEM indicated that a thin granular layer covered on the surface of model microorganism of Staphylococcus epidermildis which provided host for absorbing cobalt ions and depositing cobalt particulates. The results showed that composite present flower-like microspheres with large-scale yields. The high temperature treatment of amorphous bacteria composited cobalt microspheres showed that it well crystallized corresponding to Co3O4 at 800 °C. The microorganism composited magnetic sorbent opens an important alternation absorbent for timely oil spill cleanup.

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GLOOR, P. J., O. K. CROSSER, and A. I. LIAPIS. "DUSTY-GAS PARAMETERS OF ACTIVATED CARBON ABSORBENT PARTICLES." Chemical Engineering Communications 59, no. 1-6 (September 1987): 95–105. http://dx.doi.org/10.1080/00986448708911988.

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Gromov, O. B., M. V. Medvedev, V. I. Nikonov, V. A. Seredenko, V. S. Borovkov, P. V. Zernaev, V. N. Krutykh, V. V. Kuraev, V. I. Mazin, and P. I. Mikheev. "Chemical absorbent for catching halogen-containing gases discharged from isotope separation plants." Atomic Energy 110, no. 5 (September 2011): 339–46. http://dx.doi.org/10.1007/s10512-011-9432-2.

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Kim, K. J., T. A. Ameel, and B. D. Wood. "Performance Evaluations of LiCl and LiBr for Absorber Design Applications in the Open-Cycle Absorption Refrigeration System." Journal of Solar Energy Engineering 119, no. 2 (May 1, 1997): 165–73. http://dx.doi.org/10.1115/1.2887898.

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Both LiCl and LiBr solutions were considered for potential use in a solar-driven Open-Cycle Absorption Refrigeration (OCAR) system. A vertical falling film absorber was proposed and built to evaluate the performance of LiCl and LiBr as an absorbent. Absorption experiments were performed and the results are reported for typical operating conditions of nonabsorbable concentrations, solution concentration, solution temperature, cooling water temperature, absorber pressure, and solution flow rate, in terms of mass transfer rate. In general, LiBr outperformed LiCl in terms of effective absorption rate. Based upon experimental results, the required absorber area was estimated for both LiCl and LiBr. The small chemical potential of LiCl relative to LiBr leads to a larger absorber area. The cost for the required solution storage for three-ton cooling capacity of the present OCAR system was found to be high for both LiCl and LiBr. The pumping cost was estimated to be less than 0.1 kW for both.

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Kuga, Yoshikazu, Shigehisa Endoh, and Kazuo Takeuchi. "Grinding characteristics of a highly water-absorbent polymer." Advanced Powder Technology 2, no. 2 (1991): 151–61. http://dx.doi.org/10.1016/s0921-8831(08)60715-3.

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Li, Wanxi, Hongxue Qi, Xianjun Niu, Fang Guo, Xiuling Chen, Liancheng Wang, and Baoliang Lv. "Fe–Fe3C/C microspheres as a lightweight microwave absorbent." RSC Advances 6, no. 30 (2016): 24820–26. http://dx.doi.org/10.1039/c6ra02787c.

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Sashiwa, Hitoshi, Norioki Kawasaki, Atsuyoshi Nakayama, Einosuke Muraki, Noboru Yamamoto, Ioaunis Arvanitoyannis, Hong Zhu, and Sei-ichi Aiba. "Chemical Modification of Chitosan 121: Synthesis of Organo-soluble Chitosan Derivatives toward Palladium Absorbent for Chemical Plating." Chemistry Letters 31, no. 6 (June 2002): 598–99. http://dx.doi.org/10.1246/cl.2002.598.

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42

Pal, Dr Shri, R. Debnath, and Ms Shivnaz. "Indoor Air Quality Management under Button Up Conditions." International Journal for Research in Applied Science and Engineering Technology 10, no. 12 (December 31, 2022): 2230–38. http://dx.doi.org/10.22214/ijraset.2022.48462.

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Abstract: Maintaining the desired Indoor Air Quality under the Button Up Conditions, has always been a challanging task. The present invention provides Indoor Air Quality Management System Under Button Up Conditions[1]. The system is operated in a Normal, Button Up or Filtration mode. The invention comprises computer based fully automated system which include six sub systems i.e., CO2 Removal System, Odour/ TVOC Removal System, Oxygen Replenishment System, Compressed Air System, NBC Filtration System and Facility Management System that operate in coordination with one another to maintain the desired CO2, Oxygen and Positive Pressure levels in facility. CO2 adsorbents which adsorb CO2 from the air by way of not only their chemical reactions but also or only by way of their molecular structure and other properties. Activation of CO2 Removal System is based on the signal from the CO2 sensor that is located in the return air duct of the air handling units serving the buildings. The CO2 Removal System does not depend only on one type of absorbent/adsorbent material. All the six sub systems are fully integrated with one another to always maintain the desired levels of CO2, Oxygen and positive pressure in the facility and filter away any hazardous contaminants from the air under all three modes of operation i.e., Normal Mode, Button Up Mode or Filtration Mode as felt necessary. The Bunkerman absorbents used in the system, showed CO2 absorbent capacity of about 35% to 42% by weight. The adsorbent capacity of the Bunkerman Adsorbents and molecular sieves were observed to be between 15 to 18. An absorbent capacity of 30% and adsorbent capacity of 12% can be safely adopted for CO2 removal filters in the systems. The proposed Bunkerman Indoor Air Quality Management System was effectively able to ensure the recommended levels of CO2 and TVOC [2,3] in the facility tested during Real Button Up Mode.

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Liao, C. Y., and J. J. Lin. "Recyclability of organically modified clays for oil absorption and recovery." RSC Advances 6, no. 95 (2016): 93081–85. http://dx.doi.org/10.1039/c6ra11992a.

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Zhang, Yong, Kuiling Li, Jun Wang, Deyin Hou, and Huijuan Liu. "Ozone mass transfer behaviors on physical and chemical absorption for hollow fiber membrane contactors." Water Science and Technology 76, no. 6 (May 30, 2017): 1360–69. http://dx.doi.org/10.2166/wst.2017.254.

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To understand the mass transfer behaviors in hollow fiber membrane contactors, ozone fluxes affected by various conditions and membranes were investigated. For physical absorption, mass transfer rate increased with liquid velocity and the ozone concentration in the gas. Gas flow rate was little affected when the velocity was larger than the critical value, which was 6.1 × 10−3m/s in this study. For chemical absorption, the flux was determined by the reaction rate between ozone and the absorbent. Therefore, concentration, species, and pH affected the mass transfer process markedly. For different absorbents, the order of mass transfer rate was the same as the reaction rate constant, which was phenol, sodium nitrite, hydrogen peroxide, and oxalate. Five hydrophobic membranes with various properties were employed and the mass transfer behavior can be described by the Graetz–Lévèque equation for the physical absorption process. The results showed the process was controlled by liquid film and the gas phase conditions, and membrane properties did not affect the ozone flux. For the chemical absorption, gas film, membrane and liquid film affected the mass transfer together, and none of them were negligible.

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Khodadadi Chegeni, Beheshteh, Abbas Dadkhah Tehrani, and Mohsen Adeli. "Glyco-functionalized graphene oxides as green antibacterial absorbent materials." Journal of the Taiwan Institute of Chemical Engineers 96 (March 2019): 176–84. http://dx.doi.org/10.1016/j.jtice.2018.11.003.

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Saito, Daisuke, Makoto Sakurai, and Hideo Kameyama. "Development of CO2 Absorbent Supported on Electrically Heated Alumite." KAGAKU KOGAKU RONBUNSHU 36, no. 4 (2010): 388–93. http://dx.doi.org/10.1252/kakoronbunshu.36.388.

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Gawryla, Matthew D., and David A. Schiraldi. "Novel Absorbent Materials Created via Ice Templating." Macromolecular Materials and Engineering 294, no. 9 (August 11, 2009): 570–74. http://dx.doi.org/10.1002/mame.200900094.

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Han, Dandan, Ningru Xiao, He Hu, Bao Liu, Gengxin Song, and He Yan. "Ultrasmall superparamagnetic Ni nanoparticles embedded in polyaniline as a lightweight and thin microwave absorber." RSC Advances 5, no. 82 (2015): 66667–73. http://dx.doi.org/10.1039/c5ra09292b.

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Suvorova, Yu A., A. A. Tarova, and I. V. Ryazanov. "The Influence of the Composite Chemical Absorbent on Its Sorption and Performance Characteristics." Vestnik Tambovskogo gosudarstvennogo tehnicheskogo universiteta 24, no. 2 (2018): 318–25. http://dx.doi.org/10.17277/vestnik.2018.02.pp.318-325.

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Liu, Shengyu, Suhong Zhang, Jianying Guo, Jing Wen, and Yan Qiao. "Preparation and properties of the magnetic absorbent polymer via the chemical transformation process." Journal of Magnetism and Magnetic Materials 422 (January 2017): 280–86. http://dx.doi.org/10.1016/j.jmmm.2016.09.021.

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Journal articles on the topic 'Chemical ABsorbent'

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