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Journal articles on the topic 'Adsoprtion'

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Published: 6 April 2023

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1

Kang, Seog-Goo, and Hwa-Hyoung Lee. "Adsoprtion Characteristic of Fancy Veneer Overlaid Charcoal Board Composite." Journal of the Korean Wood Science and Technology 38, no. 5 (September 25, 2010): 385–90. http://dx.doi.org/10.5658/wood.2010.38.5.385.

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2

Ray, Martyn S. "Adsoprtion and adsorptive separations: A bibliographical update (1992?1993)." Adsorption 1, no. 1 (1995): 83–97. http://dx.doi.org/10.1007/bf00704148.

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3

Yang, M., J. Hubble, A. D. Lockett, and R. R. Rathbone. "Thermal monitoring of phenoxyacid herbicide adsoprtion on granular activated carbon." Water Research 31, no. 9 (September 1997): 2356–62. http://dx.doi.org/10.1016/s0043-1354(97)00086-9.

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4

Darmadi, Darmadi, Irfan M, Iqhramullah M, Marlina Marlina, and Mirna Rahmah Lubis. "SYHNTHESIS OF CHITOSAN MODIFIED POLYURETHANE FOAM FOR ADSOPRTION OF MERCURY (II) IONS." Jurnal Bahan Alam Terbarukan 7, no. 1 (July 22, 2018): 18–27. http://dx.doi.org/10.15294/jbat.v7i1.13614.

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Mercury from the traditional gold mining activities in Aceh Jaya Regency causes water source and thus residents are exposed to mercury metals. In organic and inorganic conditions, mercury is toxic to the human body, causes damage to the nerve system, kidney failure, heart failure, blood pressure disorders, and damage to the immune system. The problem of mercury contamination can be chemically solved in various ways. This research uses polyurethane foam to adsorb mercury from water. The adsorption and selectivity of polyurethane foam adsorption can be improved through modification with Chitosan. In this research, preheating temperature, glycerol and toluene di-isocyanate (TDI) compositions greatly affect the physical form of foam. The condition under which optimal glycerol composition used for synthesizing the polyurethane foams is 20% (w/w of mixture A). This glycerol composition results in polyurethane foams with an optimum ratio of the mixture A/TDI/distilled water of 2 : 1 : 1. The best adsorption is obtained with polyurethane foam added by 2.5% Chitosan. The optimum mercury adsorption 25% is resulted from the operating time of 60 minutes with adsorption capacity of 0.313 mg/g. For Chitosan modified polyurethane foam, research points out that the reaction is the second order reaction. The result concluded that the polymer has semi crystalline crystallization and melting temperatures.
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5

Horn, M. "A new theory of adsoprtion for the quantitative description of gas sensors." Sensors and Actuators B: Chemical 26, no. 1-3 (January 1995): 217–19. http://dx.doi.org/10.1016/0925-4005(94)01590-e.

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6

Andreas, Roy, Uyi Sulaeman, and Tien Setyaningtyas. "PEMANFAATAN KARBON SABUT KELAPA TERIMPREGNASI UNTUK MENGURANGI TEMBAGA(II) DALAM MEDIUM AIR." Molekul 3, no. 2 (November 1, 2008): 91. http://dx.doi.org/10.20884/1.jm.2008.3.2.53.

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This research is conducted to produce carbons from coconut fibre which approach to activated carbon clause continue with carbon surface modification and the adsorption examination to Cu(II) ions. The research consist of several phase. Carbon making of coconut fibre conducted by carbonization processes at 320-400oC with temperature interval 20oC. Carbon yielded in characterized moisture content, ash content and its adsoprtion to iodium. The carbon surface modification conducted by loaded 2-mercaptobenzotiazol (MBT) on carbon. The adsorpsibility of carbon-MBT tested by influence of contact time, pH, and the isoterm adsorption pattern. The result of the study showed carbonization of coconut fibre which approach the requirement of SII No.0258-89 gained at temperature 320oC. In the present study equilibrium time of 10 minute and pH was found to be optimum for both adsorbent. While type of isothermal adsorption from carban and carbon-MBT adsorbent followed the Langmuir adsorption pattern.
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7

Dovesi, R., R. Orlando, F. Ricca, and C. Roetti. "Co adsoprtion on MgO crystals: Hartree-fock calculations for regular adlayers on a (001) lattice plane." Surface Science 186, no. 1-2 (July 1987): 267–78. http://dx.doi.org/10.1016/s0039-6028(87)80048-1.

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8

Levin, M., A. Grizodoub, N. Asmolova, V. Grigorieva, and V. Georgievsky. "Model of mixed adsoprtion centre for description of retention in liquid chromatography with multi-component mobile phases." Chromatographia 37, no. 9-10 (November 1993): 517–24. http://dx.doi.org/10.1007/bf02275790.

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9

Mohamed, Mohamed Gamal, Mahmoud M. M. Ahmed, Wei-Ting Du, and Shiao-Wei Kuo. "Meso/Microporous Carbons from Conjugated Hyper-Crosslinked Polymers Based on Tetraphenylethene for High-Performance CO2 Capture and Supercapacitor." Molecules 26, no. 3 (January 31, 2021): 738. http://dx.doi.org/10.3390/molecules26030738.

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In this study, we successfully synthesized two types of meso/microporous carbon materials through the carbonization and potassium hydroxide (KOH) activation for two different kinds of hyper-crosslinked polymers of TPE-CPOP1 and TPE-CPOP2, which were synthesized by using Friedel–Crafts reaction of tetraphenylethene (TPE) monomer with or without cyanuric chloride in the presence of AlCl3 as a catalyst. The resultant porous carbon materials exhibited the high specific area (up to 1100 m2 g−1), total pore volume, good thermal stability, and amorphous character based on thermogravimetric (TGA), N2 adsoprtion/desorption, and powder X-ray diffraction (PXRD) analyses. The as-prepared TPE-CPOP1 after thermal treatment at 800 °C (TPE-CPOP1-800) displayed excellent CO2 uptake performance (1.74 mmol g−1 at 298 K and 3.19 mmol g−1 at 273 K). Furthermore, this material possesses a high specific capacitance of 453 F g−1 at 5 mV s−1 comparable to others porous carbon materials with excellent columbic efficiencies for 10,000 cycle at 20 A g−1.
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10

M. Salleh, N. F., F. F. Asmori, N. M. Shukri, and S. F. M. Hanafiah. "Adsorption Of Methylene Blue By Imperata Cylindrica: Reaction Optimization By Response Surface Methodology (RSM)." Journal of Chemical Engineering and Industrial Biotechnology 7, no. 2 (November 21, 2021): 27–33. http://dx.doi.org/10.15282/jceib.v7i2.7020.

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Imperata Cylindrica (IC) is a solid waste that is readily available throughout the year known as one of the most important weed in the world and frequently causes major disposal issues. As a result, using IC as a low-cost adsorbent is beneficial from both, economic and environmental standpoint to remove colors from wastewater of textile industry. This work studies the reaction optimization of methylene blue (MB) removal using IC by response surface methodology (RSM). The RSM experiments were designed with 4 independent variables (initial adsorbent dosage, initial pH, initial dye concentration, and initial temperature) and 1 response variable (percent removal of MB). According to the pareto figure, the initial pH demonstrated the greatest impact on the percent removal of MB. The RSM data predicted the optimum condition of MB removal up to 86.61% using IC, by utilizing adsorbent dosage of 1.458 g/L, at 42 oC, initial pH of 6.8 and MB concentration of 235 ppm. The chacterization analysis revealed the physicochemical properties of IC in the adsoprtion process.
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11

Hori, Yoshio, Akira Murata, Toshio Tsukamoto, Hidetoshi Wakebe, Osamu Koga, and Hiroki Yamazaki. "Adsoprtion of carbon monoxide at a copper electrode accompanied by electron transfer observed by voltammetry and IR spectroscopy." Electrochimica Acta 39, no. 17 (December 1994): 2495–500. http://dx.doi.org/10.1016/0013-4686(94)00259-2.

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12

Fiorenza, Roberto, Luca Spitaleri, Antonino Gulino, and Salvatore Sciré. "High-Performing Au-Ag Bimetallic Catalysts Supported on Macro-Mesoporous CeO2 for Preferential Oxidation of CO in H2-Rich Gases." Catalysts 10, no. 1 (January 1, 2020): 49. http://dx.doi.org/10.3390/catal10010049.

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We report here an investigation on the preferential oxidation of carbon monoxide in an H2-rich stream (CO-PROX reaction) over mono and bimetallic Au-Ag samples supported on macro-mesoporous CeO2. The highly porous structure of ceria and the synergistic effect, which occurs between the bimetallic Au-Ag system and the support, led to promising catalytic performance at low temperature (CO2 yield of 88% and CO2 selectivity of 100% at 60 °C), which is suitable for a possible application in the polymer electrolyte membrane fuel cell (PEMFC). The morphological, structural, textural and surface features of the catalysts were determined by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), N2-adsoprtion-desorption measurements, Temperature Programmed Reduction in hydrogen (H2-TPR), Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Photoelectron Spectroscopy (XPS). Furthermore, the catalytic stability of the best active catalyst, i.e., the AuAg/CeO2 sample, was evaluated also in the presence of water vapor and carbon dioxide in the gas stream. The excellent performances of the bimetallic sample, favored by the peculiar porosity of the macro-mesoporous CeO2, are promising for possible scale-up applications in the H2 purification for PEM fuel cells.
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13

Erna, Maria, Emriadi Emriadi, Admin Alif, and Syukri Arief. "THERMODYNAMIC PROPERTIES AND CHARACTERIZATIONS OF CHITOSAN NANO-PARTICLES CORROSION INHIBITION ON THE SURFACE OF MILD STEELIN PEAT WATER MEDIA." ALCHEMY Jurnal Penelitian Kimia 12, no. 1 (August 17, 2016): 27. http://dx.doi.org/10.20961/alchemy.12.1.936.27-35.

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The thermodynamic properties and characterizations of corrosion inhibition of chitosan nano-particles on the surface of mild steel in peat water media had been studied using weight loss method at temperatures of 30 - 50 <sup>o</sup>C. Steel surfaces were characterized by FT-IR spectra and SEM-EDS morphology photos. The research found that the value of DG<sup>o </sup>approaching -40 kJmol<sup>-</sup><sup>1</sup>. The negative value of Gibbs free energy shows that the adsorption of inhibitor molecules on the surface of mild steel was achemisorption and it occurred spontaneously. Meanwhile, the values of DH<sup>o </sup>is also negative confirming that the adsoprtion of inhibitor molecules is an exothermic process. The value of DS<sup>o </sup>obtained is positive, it indicates hat the inhibitor molecules were adsorbed spontaneously on the mild steel surface. The analysis on mild steel surfaces hows that the nano-particle chitosan was adsorbed on the steel surface to form the complex compounds.
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14

Erna, Maria, Emriadi Emriadi, Admin Alif, and Syukri Arief. "THERMODYNAMIC PROPERTIES AND CHARACTERIZATIONS OF CHITOSAN NANO-PARTICLES CORROSION INHIBITION ON THE SURFACE OF MILD STEELIN PEAT WATER MEDIA." ALCHEMY Jurnal Penelitian Kimia 12, no. 1 (August 17, 2016): 27. http://dx.doi.org/10.20961/alchemy.v12i1.936.

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The thermodynamic properties and characterizations of corrosion inhibition of chitosan nano-particles on the surface of mild steel in peat water media had been studied using weight loss method at temperatures of 30 - 50 <sup>o</sup>C. Steel surfaces were characterized by FT-IR spectra and SEM-EDS morphology photos. The research found that the value of DG<sup>o </sup>approaching -40 kJmol<sup>-</sup><sup>1</sup>. The negative value of Gibbs free energy shows that the adsorption of inhibitor molecules on the surface of mild steel was achemisorption and it occurred spontaneously. Meanwhile, the values of DH<sup>o </sup>is also negative confirming that the adsoprtion of inhibitor molecules is an exothermic process. The value of DS<sup>o </sup>obtained is positive, it indicates hat the inhibitor molecules were adsorbed spontaneously on the mild steel surface. The analysis on mild steel surfaces hows that the nano-particle chitosan was adsorbed on the steel surface to form the complex compounds.
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15

Nguyen, Phuong T. K., and Y. B. N. Tran. "Copper‐Based Metal‐Organic Framework for Selective CO 2 Adsoprtion and Catalysis Fixation of CO 2 into Cyclic Carbonates." ChemistrySelect 6, no. 17 (April 30, 2021): 4067–73. http://dx.doi.org/10.1002/slct.202100880.

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16

Dedkova, V. P., O. P. Shvoeva, and S. B. Savvin. "Sequential determination of nickel(II) and zirconium(IV) with dimethylglyoxime and arsenazo III after adsoprtion on one substrate disc." Journal of Analytical Chemistry 69, no. 11 (October 21, 2014): 1037–40. http://dx.doi.org/10.1134/s1061934814110045.

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17

Tahir, Fatmawati, Ani Setyopratiwi, and Sri Sudiono. "THERMAL EFFECT OF COCONUT CREAMS ABILITY TO ADSORB CALCIUM(II)." Indonesian Journal of Chemistry 2, no. 2 (June 8, 2010): 120–24. http://dx.doi.org/10.22146/ijc.21924.

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Study of thermal effect of coconut cream's ability to adsorb Ca (II) has been done at various temperatures of 49 oC, 59 oC and 80 oC. The adsorption study was performed to check capacity, energy and rate of adsorption by varying the number of initial concentration of CaCl2 bounded on coconut protein. This research was also done to determine number of Ca (II) in the coconut protein using the salt addition and elicits reaction methods. The result showed that adsorption ability tends to increased with the increase of temperature). Coconut cream heated at 59 oC adsorb Ca(II) with the highest adsorption capacity of 3.98 mg/g and K = 3.48x104 mol-1. The salt addition method on the coconut cream gives more Ca (II) than elicit reaction method. The first method gives 0.01137 mol/L and the second was 0.02845 mol/L. Based on the energy of adsorption, cream without heating had 20.59 kJ/mol as a physical adsorption and heating effect at temperatures 49 oC, 59 oC and 80 oC had 24.95; 28.87 and 24.87 kJ/mol respectively as a chemical adsoprtion with the rate of adsorptions of 0,0054; 0,0510 dan 0,3. 10-4 minute-1, respectively. Keywords: coconut cream, adsorption, thermal effect.
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18

BARRIUSO, E., J. M. PORTAL, and F. ANDREUX. "CINÉTIQUE ET MÉCANISME DE L'HYDROLYSE ACIDE DE LA MATIÈRE ORGANIQUE D'UN SOL HUMIFÈRE DE MONTAGNE." Canadian Journal of Soil Science 67, no. 3 (August 1, 1987): 647–58. http://dx.doi.org/10.4141/cjss87-061.

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From the surface horizon of an organic-rich mountain soil, humic and fulvic acids, and organo-mineral compounds including clay and hydroxy-metal colloids, were separated and purified. Each of these fractions was hydrolyzed in 3.0 M HCl under reflux, then the reaction parameters related to the solubilization of carbon and nitrogen and to the kinetics of hydrolysis were calculated. Acid hydrolysis was interpreted as the result of two successive steps: first a rapid electrophilic attack of heteroatomic C-O and C-N bonds by protons, then a slow nucleophilic hydration of the protonated bonds. Electron delocalization in these bonds, which increased with the polycondensation degree of organic compounds, and with their adsoprtion on mineral surfaces, resulted in an increase in their stability to hydrolysis. Fulvic acids were found to be the less stable material, and lead to predominantly anionic hydrolysis products. Clay-sized humin was the most stable material and yielded mainly cationic hydrolysates. The stability to hydrolysis and the humification degree of organic matter in the fractions generally coincided, and decreased in the following order: fine clay-sized humin > alkali dispersible organo-mineral colloids > > humic acids > hydroxy-ferric organic colloids > hydroxy-aluminium organic colloids = fulvic acids. Key words: Organo-mineral complex, humic substances, acid hydrolysis, carbon, nitrogen
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19

Kristanto, Gabriel Andari, Ariessyawtra Raindra Lamurvie, and William Koven. "A Study of Compost as an Adsorbent for Congo Red Dye Removal Process." Reaktor 17, no. 4 (February 2, 2018): 203. http://dx.doi.org/10.14710/reaktor.17.4.203-209.

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The human population continues to grow annually, and so does the number of textile industries. In textile industry, synthetic dye is one of the most polluting substance in its wastewate which the conventional treatment processes are usually ineffective. Another option is using activated carbon to remove the dye, but carbon is an expensive material. It is is interesting that material that is rich in carbon, such as compost, may become an alternative solution. The objective of the present study was to assess the capability of compost in treating wastewater dye by determining the optimum compost dosage, particle size, and column height, while considering dye percentage removal and adsoprtion capacity. The optimum compost dosage was 8g/L and the optimum particle size was 1–2 mm in treating the 200 ppm Congo Red dye molecule, resulting in 20.49% removal and a 5.33 mg/g adsorption capacity. The optimum compost column height was 60 cm with 90% removal, and the adsorption capacity was 0.38 mg/g. The dye molecule wore off tthe compost, therefore fresh compost must be introduced in order to maintain its percentage removal level. The compatibility of isotherm model developed in this study with the Freundlich model is similar with previous studies. Keywords: compost; congo red dye;adsorbent, batch, column
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20

Nurlita Hartanti. "The Effect of Biostarter Addition on Kudzu (Pueraria Javanica) Compost to Nutrient Content and N Adsoprtion of Mustard (Brassica Juncea L.)." Journal of Soilscape and Agriculture 1, no. 2 (March 29, 2023): 104–14. http://dx.doi.org/10.19184/jsa.v1i2.132.

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Compost fertilizer is very influential on the nutrient status of the soil and plants. Giving compost fertilizer will also have a good effect on the growth and development of mustard plants. This study aims to determine the effect of the addition of biostarter on compost fertilizer to N-total and N nutrient absorption on mustard plants. The experiment was structured using factorial randomized group design. The method in this study using compost analysis,soil analysis, and plant analysis. The results showed that the nine samples have different nutrient content and nutrient nutrient absorption resulting in different effects on soil and mustard plants. Nitrogen in the soil greatly affects the N nutrient absorption on plants, the two parameters have a positive correlation which means directly proportional. Nitrogen absorbed by plants affects N-total levels in plants. N levels in plants and soil is very influential on the color of the leaves of mustard plants. Through the nutrient levels can be known proper fertilization recommendations for mustard plants. Based on the analysis of nutrient levels in soil and plants known fertilizer recommendations in nine samples with the addition of biostarter in kudzu compost and fertilizer doses.
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21

Klinke, B., A. Röckel, S. Abdelhamid, P. Fiegel, and D. Walb. "Transmembranous Transport and Adsorption of Beta-2-microglobulin during Hemodialysis using Polysulfone, polyacrylonitrile, polymethylmethacrylate and Cuprammonium Rayon Membranes." International Journal of Artificial Organs 12, no. 11 (November 1989): 697–702. http://dx.doi.org/10.1177/039139888901201106.

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Beta-2-microglobulin (b2M) was identified as a causative agent of amyloidosis associated with long-term hemodialysis (HD). Therefore, we examined handling of b2M during a 4-hour hemodialysis session. We compared b2M adsoprtion and diffusive/convective elimination between high-flux membranes such as polysulfone (PS; F 60®, Fresenius), polyacrylonitrile (AN 69; FiltralR, Hospal) and polyacrylonitrile (PAN, PAN 12CX2R, Asahi) and less permeable membranes such as cuprammonium rayon (CR; AM 160 HR, Asahi) and polymethylmethacrylate (PMMA; BK-1.6 UR, Toray). To calculate total elimination, arterio-venous differences of b2M were measured at 0, 5, 20, 60 and 240 minutes; dialysate concentration was analyzed to evaluate diffusive/convective transport. Differences between recovery in dialysate and total removal were regarded as amount removed by adsorption. Total elimination per 4-hour hemodialysis session and per m2 membrane surface was 154.7 ± 12.3 mg for the PS, 137.8 ± 28.4 mg for the AN 69, 179.8 ± 47.5 mg for the PAN, 130.8 ± 11.8 mg for the PMMA and 14.4 ± 16.0 mg for the CR membrane. Diffusive/convective transport was 128.0 ± 18.1 mg for PS, 54.7 ± 8.1 mg for AN 69 and 106.5 ± 20.8 mg for PAN and insignificant for PMMA and CR. Adsorption was 26.7 ± 4.3 mg for PS, 83.1 ± 29.0 mg for AN 69 and 59.8 ± 17.2 mg for PAN. Besides transmembranous transport sorption is an important mode of elimination. Weekly endogenous generation rate is about twice as high as b2M elimination
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22

"A Comparative Evaluation of Adsoprtion Isotherm in Clay- Dominated Shale." INTERNATIONAL JOURNAL OF LATEST TRENDS IN ENGINEERING AND TECHNOLOGY 7, no. 2 (2016). http://dx.doi.org/10.21172/1.72.535.

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23

".A comparative evaluation of adsoprtion isotherm in clay- dominated shale." INTERNATIONAL JOURNAL OF LATEST TRENDS IN ENGINEERING AND TECHNOLOGY 7, no. 2 (2016). http://dx.doi.org/10.21172/1.72.545.

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24

Erna, Maria. "THERMODYNAMIC PROPERTIES AND CHARACTERIZATIONS OF CHITOSANNANO-PARTICLES CORROSION INHIBITION ON THE SURFACE OF MILD STEELIN PEAT WATER MEDIA." ALCHEMY Jurnal Penelitian Kimia 12, no. 1 (March 1, 2016). http://dx.doi.org/10.20961/alchemy.v12i1.784.

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<p>The thermodynamic properties and characterizations of corrosion inhibition of chitosan nano-particles on the surface of mild steel in peat water media had been studied using weight loss method at temperatures of 30 - 50 <sup>o</sup>C. Steel surfaces were characterized by FT-IR spectra and SEM-EDS morphology photos. The research found that the value of DG<sup>o </sup>approaching -40 kJmol<sup>-</sup><sup>1</sup>. The negative value of Gibbs free energy shows that the adsorption of inhibitor molecules on the surface of mild steel was achemisorption and it occurred spontaneously. Meanwhile, the values of DH<sup>o </sup>is also negative confirming that the adsoprtion of inhibitor molecules is an exothermic process. The value of DS<sup>o </sup>obtained is positive, it indicates hat the inhibitor molecules were adsorbed spontaneously on the mild steel surface. The analysis on mild steel surfaces hows that the nano-particle chitosan was adsorbed on the steel surface to form the complex compounds. </p>
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25

Hameed, Bassim H., Abdul Rahman Mohamed, and Hui Ying Chong. "Adsorption of Toluene Using Low Cost Adsorbent." Jurnal Teknologi, January 20, 2012. http://dx.doi.org/10.11113/jt.v40.420.

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Kertas kerja ini membincangkan tentang kecekapan penjerap yang lebih murah, iaitu tayar getah terbuang (DRT), dalam menyingkirkan toluena daripada fasa akuas. Penjerapan toluena pada tayar getah terbuang dikaji menggunakan sistem berkelompok pada suhu 25°C dan 30°C. Daripada kajian ini, didapati toluena dapat disingkirkan sehingga 70% dengan menggunakan julat kepekatan awalan antara 50 mg/l hingga 300 mg/l. Dengan menggunakan model keseimbangan terlelurus, iaitu model Langmuir dan Freundlich, keupayaan penjerapan maksimum dapat ditentukan. Daripada data eksperimen, terbukti bahawa walaupun kedua–dua model isoterma Langmuir dan Freundlich boleh menjelaskan data isoterma, tetapi penjerapan toluena pada DRT dapat ditunjukkan dengan lebih baik oleh isoterma Freudlich. Bagi nilai K Freundlich, keupayaan penjerapan ialah 6.6374 mg/l dan 7.7535 mg/l, pada suhu 25°C dan 30°C. Nilai eksponen n Freudlich adalah lebih daripada satu untuk kedua–dua suhu. Kata kunci: Toluena, penjerapan, isoterma, tayar getah terbuang, model isoterma Langmuir, model isoterma Freundlich This paper discusses the effectiveness of a less expensive adsorbent, a discarded rubber tyre (DRT) in removing toluene from aqueuos phase. Adsorption of toluene on a DRT has been studied by using batch system at 25 and 30°C. It was found that up to 70% of toluene was removed for the range of toluene initial concentrations studied between 50–300 mg/l. Using linearized forms of equilibrium models, namely Langmuir and Freundlich models, the maximum adsorptive capacities were determined. It was evident from the experimental data that, although both Langmuir and Freundlich isotherm models could describe the isotherm data, the adsorption of toluene on a DRT was described well by the Freundlich isotherm. For Freundlich K values, sorption capacities were 6.6374 and 7.7535 mg/l at 25 and 30°C, respectively. The values of Freundlich exponent n were greater than one for both temperatures. Key words: Toluene, adsoprtion, isotherms, discarded rubber tyre, Langmuir isotherm model, Freundlich isotherm model
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