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Dissertations / Theses on the topic 'Graphitic Carbon Nitrides'

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Published: 6 September 2023
Last updated: 7 September 2023

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1

Rahman, A. S. "Theoretical and experimental investigations of graphitic and crystalline carbon nitrides." Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1426441/.

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Solid state carbon nitride materials are useful in a number of areas in industry, ranging from heat retardation, photocatalysis, electrochemistry, as well as the potential to form a new super hard material to rival diamond. The flexible nature of the chemical bonding and environment of C and N atoms in a carbon nitride system gives rise to wide structural diversity, which present challenges in characterisation of the material. Theoretical modeling for such a versatile system is an essential part of scientific research. Quantum mechanical computational methods are employed to study carbon nitr
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Kharlamov, A. I., M. E. Bondarenko, G. A. Kharlamova, and V. V. Fomemko. "Direct Synthesis of O-doped Carbon Nitride and Oxide of Graphite-like Carbon Nitride from Melamine." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42601.

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It was first performed a special method of pyrolysis of melamine in order to study the possibility of coproduction of carbon nitride and its oxidized derivatives. New compound as a graphite-like carbon nitride oxide (g-C3N4)O, which is isostructural analogue of graphite oxide, and doped with oxygen ( ~ 8.1 % ), carbon nitride (O-g-C3N4) were obtained. In contrast to known methods for the preparation of samples doped with oxygen carbon nitride a new route does not provide a preliminary synthesis of g-C3N4.The synthesized carbon nitride oxide is easily stratified and dissolved in water to form a
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3

Wang, Jing. "Development of Graphitic Carbon Nitride based Semiconductor Photocatalysts for Organic Pollutant Degradation." Doctoral thesis, KTH, Tillämpad processmetallurgi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-173216.

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As a potential solution to the global energy and environmental pollution, design and synthesis of artificial photocatalysts with high activities have attracted increasing scientific interests worldwide. In recent years, the graphitic carbon nitride (g-C3N4) has shown new possible applications in the photocatalytic field due to its unique properties. However, the photocatalytic efficiency of the pristine g-C3N4 is greatly limited by the high recombination rate of the photo-induced electron-hole pairs. In this thesis, the aim is to design and fabricate efficient g-C3N4 based photocatalysts with
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4

Li, Lingling. "Porphyrins, graphitic carbon nitride and their hybrids for photocatalytic solar fuel generation." HKBU Institutional Repository, 2020. https://repository.hkbu.edu.hk/etd_oa/736.

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Photocatalytic solar fuel generation is the most green, sustainable and viable approach to deal with both the ever-growing energy crisis and environmental issues, simultaneously. The work presented in this thesis is focused on the development of new organic carbonaceous semiconductors, typically, carbon quantum dots (CQDs) and graphitic carbon nitride (g-C3N4), and porphyrin small molecules and their hybrids with graphitic carbon nitride, meanwhile, their application in the field of photocatalytic solar fuel generation. In the chapter 1, a general review about background and mechanism of photo
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He, Jijiang. "Preparation and photocatalysis of graphite carbon nitride based photocatalysts." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/521.

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The connection between ritual and the interior is interrogated through a theoretical framework integrating Van Gennep’s Rites of Passage Theory and Turner’s Theory of Liminality. A multi-faceted methodological framework is developed from the interrogation of the disciplinary edges of multiple methodologies, addressing the experiential, cultural and subjective dimensions of ritual. This new way of exploring the interior demonstrates how knowledge can be acquired from the body’s immersion in unfolding ritual situations, revealing elements of ritual and interior in relation to one another and the
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6

Liu, Mengdi. "Ta₃N₅/Polymeric g-C₃N₄ as Hybrid Photoanode for Solar Water Splitting:." Thesis, Boston College, 2018. http://hdl.handle.net/2345/bc-ir:108366.

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Thesis advisor: Dunwei Wang<br>Water splitting has been recognized as a promising solution to challenges associated with the intermittent nature of solar energy for over four decades. A great deal of research has been done to develop high efficient and cost-effective catalysts for this process. Among which tantalum nitride (Ta₃N₅) has been considered as a promising candidate to serve as a good catalyst for solar water splitting based on its suitable band structure, chemical stability and high theoretical efficiency. However, this semiconductor is suffered from its special self-oxidation proble
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7

Adekoya, Oluwatobi. "Design and Synthesis of Graphitic Carbon Nitride (g-C3N4) Based Materials for Rechargeable Batteries." Thesis, Griffith University, 2020. http://hdl.handle.net/10072/401444.

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Carbon nitrides are a unique family of nitrogen-rich carbon materials with multiple beneficial properties for effective alkali metal ion transport/storage. Graphitic carbon nitride (g-C3N4) is considered the most viable member of the carbon nitride family because of its high nitrogen content, wide structure with several nitrogen-defect pore sites, ease of synthesis, affordability, and scalability. Also, g-C3N4 delivers a lithium ion battery (LIBs) theoretical capacity of 524 mAh/g unlike graphite which records only 327 mAh/g. However, due to the ineffective intercalation/deintercalation reacti
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Nguyen, Chinh Chien, and Chinh Chien Nguyen. "Novel strategies to develop efficient titanium dioxide and graphitic carbon nitride-based photocatalysts." Doctoral thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/30378.

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Afin de résoudre les problèmes environnementaux et énergétiques modernes, ces dernières années ont vu le développement de catalyseurs photocataytiques capables d’utiliser la lumière solaire. En effet, les possibles applications des semiconducteurs présentant des propriétés photocatalytiques dans les domaines de la production d’hydrogène ou la dégradation de polluants organiques ont généré un grand intérêt de la part de la communauté scientifique. Actuellement, les photocatalyseurs à base de dioxyde de titane (TiO₂) et de nitrure de carbone graphitique (g-C₃N₄) sont considérés comme les matéria
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9

Kumru, Baris [Verfasser], and Markus [Akademischer Betreuer] Antonietti. "Utilization of graphitic carbon nitride in dispersed media / Baris Kumru ; Betreuer: Markus Antonietti." Potsdam : Universität Potsdam, 2018. http://d-nb.info/1219078034/34.

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10

Li, Yibing. "Graphitic Carbon-Based Functional Nanomaterials for Environmental Remediation and Energy Conversion Applications." Thesis, Griffith University, 2015. http://hdl.handle.net/10072/366091.

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Carbon-based nanomaterials have attracted significant attention due to their unique optical, electrical, thermal and mechanical properties. In recent years, a large number of carbon-based nanomaterials have been investigated including carbon nanotubes, graphitic carbon nitride (g-C3N4), graphene, carbon nanofibers, carbon nanodots (CNDs), heteroatom-doped carbon, and carbon-based materials obtained from biomass etc. The unique and superior properties of such carbon-based materials make them useful for a wide range of applications in the fields such as environmental remediation and energy conve
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11

Muchharla, Baleeswaraiah. "Low Temperature Electrical Transport in 2D Layers of Graphene, Graphitic Carbon Nitride, Graphene Oxide and Boron-Nitrogen-Carbon." OpenSIUC, 2015. https://opensiuc.lib.siu.edu/dissertations/1132.

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In this work, we have investigated temperature dependent electrical transport properties of carbon based two-dimensional (2D) nanomaterials. Various techniques were employed to synthesize the samples. For instance, high quality large area graphene and boron, nitrogen doped graphene (BNC) were grown using thermal catalytic chemical vapor deposition (CVD) method. Liquid phase exfoliation technique was utilized to exfoliate graphene and graphitic carbon nitride samples in isopropyl alcohol. Chemical reduction technique was used to reduce graphene oxide (rGO) by utilizing ascorbic acid (a green ch
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12

Giri, Atanu. "Development of Photocatalysts Supported on Graphitic Carbon Nitride for the Degradation of Organic Water Pollutants." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5692.

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Graphitic carbon nitride (g-C3N4) heterojunction composites with the semiconducting metal oxides, CeO2, ZnO and TiO2 are prepared in situ by co-calcination of the precursor materials or by a solvothermal method. The structural, morphological and the optical properties of the prepared materials are studied using various microscopy and spectroscopy techniques. The synthesized composite materials, CeO2/g-C3N4, ZnO/g-C3N4 and TiO2/g-C3N4 are more efficient in the photocatalytic degradation of the water pollutants indigo carmine (IC) and atrazine than the pure metal oxide, g-C3N4, or their physical
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13

Chiguma, Jasper. "Conducting polymer nanocomposites loaded with nanotubes and fibers for electrical and thermal applications." Diss., Online access via UMI:, 2009.

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14

Caux, Marine. "Metal-loaded graphitic carbon nitride for photocatalytic hydrogen production and the development of an innovative photo-thermal reactor." Thesis, University of St Andrews, 2018. http://hdl.handle.net/10023/15873.

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The path towards mitigation of anthropogenic greenhouse gas emissions lies in the transition from conventional to sustainable energy resources. The Hydrogen Economy, a cyclic economy based on hydrogen as a fuel, is suggested as a tool in the necessary energy transition. Photocatalysis makes use of sunlight to promote thermodynamically non-favoured reactions such as water splitting, allowing for sustainable hydrogen production. Harvesting thermal energy along with photonic energy is an interesting concept to decrease the activation energy of water splitting (i.e. ΔG = + 237.2 kJ∙mol−1). This wo
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15

Fina, Federica. "Metal loaded g-C₃N₄ for visible light-driven H₂ production." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/6322.

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The need for green and renewable fuels has led to the investigation of ways to exploit renewable resources. Solar among all the renewables is the most powerful and its conversion into usable energy would help in solving the energy problem our society is facing. Photocatalytic water splitting for hydrogen production is an example of solar energy storage into chemical bonds. The hydrogen produced in this way can then be employed as carbon free fuel creating the “Hydrogen Cycle”. This work investigates the structure and the activity of graphitic carbon nitride (g-C₃N₄), an organic semiconductor t
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16

De, Silva Suchitra Waruni. "Numerical investigation on low dimensional materials for gas adsorption and separation." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/106920/1/Suchitra%20Waruni_De%20Silva_Thesis.pdf.

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This thesis is a study of gas separation by low-dimensional nanomaterials through selective adsorption and membrane separation. The study uses first-principles quantum mechanical simulations and classical molecular dynamic simulations to study the gas separation behaviour of doped fullerenes, porous boron nitride membranes and graphitic carbon nitride membranes. The thesis further demonstrates how chemical affinity and size exclusion behaviour of the adsorbent and membrane materials are tweaked to achieve the targeted separation and how the separation behaviour can be tuned to match the applic
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17

Han, Chenhui. "Nanomaterials stabilized pickering emulsions and their applications in catalysis." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/134131/1/Chenhui%20Han%20Thesis_Redacted.pdf.

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This thesis is an exploratory study of nanomaterials stabilized Pickering emulsions and their applications. The study illustrates some novel emulsion behaviour through dynamic observation and develops a mechanically switchable emulsion based on the microstructure design of nanomaterials. The droplets of emulsion are demonstrated as an effective microreactor for chemical reactions that happen at the oil-water interface, showing the potential application of Pickering emulsion in catalysis.
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18

von, Deak Dieter G. "Heteroatom-containing Carbon Nanostructures as Oxygen Reduction Electrocatalysts for PEM and Direct Methanol Fuel Cells." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313085489.

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19

Lan, Phung Thi, and Nguyen Thi Kim Giang. "Study on synthesis of MoS2modified g-C3N4materials for treatment of Direct black 38 dye." Caprice Thomas, Abt. 3.3.3 Qucosa, 2018. https://tud.qucosa.de/id/qucosa%3A33074.

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Pure g-C3N4 and MoS2 modified g-C3N4 materials were synthesized using a facile heating method and a low-temperature hydrothermal method, respectively. The obtained samples were characterized by XRD pattern and N2 adsorption-desorption technique at 77K. The adsorption and photocatalytic performance of all obtained samples were investigated by discoloration of direct black 38 dye in the dark and under visible light irradiation. The results showed that all obtained samples exhibited good discoloration efficiency of direct black 38 dye. The two factors including pH values and Mo loading effected m
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20

Gope, Subhra. "Investigations of Chalcogen-Cathodes and a Carbonitride-Anode for Alkali-Based Rechargeable Batteries." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4231.

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In this thesis, we have attempted to understand the working principle of Li(Na)-S(Se) battery and following such understandings we have attempted towards the design of various S(Se)- cathode materials for the alkali based chalcogen batteries. In the final chapter, we have focussed on the development of anode materials for full Li-ion cell. The summary of the various chapters is as follows. Chapter 2 discusses about NaY-xS-PAni exhibiting remarkable electrochemical performance as a cost-effective sulfur cathode for rechargeable Li-S batteries. The superior electrochemical stability and p
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21

Li, Jie-An, and 李捷安. "Visible-light responsive graphitic carbon nitride photocatalysts." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/2jyb9u.

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碩士<br>國立中興大學<br>環境工程學系所<br>106<br>A visible-light-driven graphitic carbon nitride/reduced graphene oxide/α-Sulfur composite (CNRGOS8) was synthesized as efficient photocatalysts for environmental applications. The photocatalytic reactivity of the fabricated CNRGOS8 was determined by the degradation of Rhodamine B (RhB) and tetracycline (TC). The effects of pH, mixed ratio of catalysts, dosage of photocatalyst were optimized, and the reaction kinetics and reaction pathway were studied. The results indicated the optimized pH values for RhB and TC degradation was 3 and 7, respectively. In additio
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22

Wang, Yi-De, and 王貽德. "Environmental applications and implications of graphitic carbon nitride." Thesis, 2019. http://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22107NCHU5087031%22.&searchmode=basic.

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碩士<br>國立中興大學<br>環境工程學系所<br>107<br>Photocatalytic degradation has emerged as a promising technique owing to its promising ability toward resolving the limitations of the conventional wastewater treatment progress. Graphitic carbon nitride (CN), a polymeric metal-free semiconductor, the narrower bandgap (approximately 2.7 eV) enables its utilization of natural light, and therefore, great progress has been made in the use of this material in a wide range of applications. In the present work, photocatalytic performance and photostability of CN was systematically investigated. CN synthesized from v
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Ho, Sin-Yi, and 何信逸. "Molybdenum Oxide / Graphitic Carbon Nitride Composites for Photocatalytic Reduction of Carbon Dioxide." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6xmg7k.

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碩士<br>逢甲大學<br>化學工程學系<br>106<br>In this study, molybdenum oxides with various oxidation states were decorated on two-dimensional graphitic carbon nitride (gCN) to enhance the photocatlytic activity of CO2 reduction under visible light irradiation and to correlate the characteristics of photocatalysts to the efficiency of CO2 conversion. Part 1: Preparation and Properties of Molybdenum Trioxide / Graphitic Carbon Nitride Composite for Photocatalysis Molybdemum trioxide/graphitic carbon nitride was prepared by calcination and hydrothermal method. Ammonium molybdate tetrahydrate was the precursor
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Nguyen, Thanh-Binh, and 阮青平. "Preparation of Graphitic Carbon Nitride Supported Nanocomposites for Water Purification." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/nkef26.

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博士<br>國立清華大學<br>生醫工程與環境科學系<br>106<br>Graphitic carbon nitride (g-C3N4) is a promising material for photocatalytic applications such as solar fuels production through CO2 reduction and water splitting, and environmental treatment through the degradation of organic pollutants. This promise reflects the advantageous photophysical properties of g-C3N4 nanostructures, notably high surface area, quantum efficiency, interfacial charge separation and transport, and ease of modification through either composite formation or the incorporation of desirable surface functionalities. For heterogeneous catal
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Luong, Nguyen Thi Hien, and 阮氏賢良. "Boron, phosphorus co-doped one dimensional graphitic carbon nitride for photodegradation of diclofenac." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/29jgxm.

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Hu, yao chong, and 胡耀中. "Cobalt Diselenide / Graphitic Carbon Nitride Composite Material as Cathode Catalyst for Lithium – O2 Batteries." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/5cz9kg.

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碩士<br>國立臺北科技大學<br>機電整合研究所<br>104<br>In the recent years, with the continuous development of economic globalization, the quality of our living have gone from good to well, when people enjoy the convenience technology, I also need to face the problem of energy shortage and environmental pollution. So far oil as a major energy source in the world, resulting in crude oil prices continue to rise in recent years. Fossil fuels easy to produce emissions of carbon dioxide and other harmful gases, so the development of high energy density secondary battery that reduce environmental pressure is the dev
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Chen, R., J. Zhang, Y. Wang, Xianfeng Chen, J. A. Zapien, and C.-S. Lee. "Graphitic carbon nitride nanosheet@metal-organic framework core-shell nanoparticles for photo-chemo combination therapy." 2015. http://hdl.handle.net/10454/9324.

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No<br>Recently, nanoscale metal-organic frameworks (NMOFs) have started to be developed as a promising platform for bioimaging and drug delivery. On the other hand, combination therapies using multiple approaches are demonstrated to achieve much enhanced efficacy. Herein, we report, for the first time, core-shell nanoparticles consisting of a photodynamic therapeutic (PDT) agent and a MOF shell while simultaneously carrying a chemotherapeutic drug for effective combination therapy. In this work, core-shell nanoparticles of zeolitic-imadazolate framework-8 (ZIF-8) as shell embedded with graphit
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28

Mao-Sheng, Wang, and 王貿生. "Design and Application of Photocatalytic-Membrane Reactor using Phosphorus-Doped Graphitic Carbon Nitride as Photocatalyst." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/3duwwv.

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碩士<br>中原大學<br>化學工程研究所<br>106<br>Photocatalytic-Membrane Reactor (PMR) has been widely used in wastewater removal in recent years. Compared to batch photodegradation system, not only photocatalyst can be separated from liquid phase in PMR, but also the removal efficiency can be increased significantly. In this study, we design a PMR system to remove wastewater containing methyl blue, methyl orange, phenol, and mixed organic dyes. In this study, phosphorus-doped graphite-type carbon nitride (PCN) was prepared in an attempt to coat on the substrate. XRD patterns show the diffraction peaks of PCN
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SHEN, PEI-WUN, and 沈姵妏. "Nitride graphite / manganese dioxide screen-printed carbon electrode nitrite detection and the detection of 4-hydroxynitrobenzene in river water by nickel disulfide/graphene oxide glassy carbon electrode." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8e94qg.

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碩士<br>國立臺北科技大學<br>化學工程與生物科技系化學工程碩士班<br>107<br>Part I：In this study, a simple and environmentally friendly hydrothermal method was used to prepare a porous graphite carbonitride/manganese dioxide nanocomposite (GCN/MnO2), which was modified on a screen printed carbon electrode(SPCE), and for the first time applied to the electrochemical detection of nitrite, the rapid and sensitive detection efficiency of the nanocomposite electrode is helpful for the development of nitrite electrochemical detection. In this experiment, various physical and chemical techniques were used to detect properties: X-
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Lee, I.-Jung, and 李伊容. "Near-Infrared Light Mediated Photodynamic Therapy Based on Nanocomposite of Upconversion Nanoparticles and Graphitic Carbon Nitride Quantum Dots." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/57595224589676754158.

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碩士<br>國立臺灣大學<br>化學研究所<br>104<br>Based on the latest statistics from the Ministry of Health and Welfare, malignant tumor continues to be on top of disease, and then followed by the heart disease and cerebrovascular disease, so the diagnosis and medical treatment has become one of the major issues. Nowadays, cancer treatments still focus on surgical resection, chemotherapy and radiation therapy, but it still can be improved for the more effective treatment. As a result, human beings have continued to investigate novel adjuvant cancer therapy in recent years, photodyn
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Shang-Yi, Chou, and 周尚毅. "The Characterization of Bismuth Oxyiodide/Graphene Oxide (or Graphitic Carbon Nitride) Composites and their Photocatalytic Degradation of the Organic Pollutants." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/05426627624379743556.

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碩士<br>國立臺中教育大學<br>科學教育與應用學系科學教育碩士班<br>103<br>In this study, a series of the bismuth oxyiodide composite graphene oxide (GO) or graphitic carbon nitride (g-C3N4) are prepared using autoclave hydrothermal methods. In the preparation procedure, g-C3N4 is synthesized by calcinations at 540℃ in muffle furnace , and graphene oxide is synthesized by Hummer method modified. Graphene and g-C3N4 are the two-dimensional atomic crystal available for enhancing electron-hole transfer surface and reduce the recombination rate of photocatalyst. Bismuth oxyiodide, with different crystalline in different pH vm
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Chu, Yi-Ching, and 朱怡親. "Photoelectrochemical Analysis of Multi-ion Doped Graphite Carbon Nitride (g-C3N4) and Its Application on Hydrogel Formation." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/7crvvu.

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碩士<br>中原大學<br>化學工程研究所<br>107<br>Graphitic carbon nitride (g-C3N4) is a promising visible light-driven photocatalyst with a band gap energy of 2.70 eV. However, abundant surface defects and unwanted carbon or nitrogen vacancies may lead to high charge recombination that results in a decrease of photocatalytic activity. In this study, P and S were co-doped on oxygenated g-C3N4(PSOCN) using a thermal condensation method with different weight ratio of P and S (PxSyOCN, x, y =5,10,15). Photoelectrochemical properties including impedance spectroscopy, Mott-Schottky analysis, and photocurrent density
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Huang, Yu-Cheng, and 黃裕呈. "Electronic Structure and Photocatalytic Mechanism of Graphitic Carbon Nitride Modified with Plasmonic Ag@SiO2 Core-shell Nanoparticles by X-ray Absorption Spectroscopy." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/792hgr.

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碩士<br>國立交通大學<br>電子物理系所<br>105<br>Graphitic-like carbon nitride (g-C3N4) modified with plasmonic Ag@SiO2 core-shell nanoparticles has attracted considerable interest as a means to enhance photocatalytic solar hydrogen evolution under visible light. High-rate charge carrier recombination is a key factor limiting the photocatalytic activity of g-C3N4. In this study, the SiO2 shell generated a nanogap separating the plasmonic silver nanoparticles and g-C3N4. The plasmon resonance energy transfer (PRET) and energy-loss Förster resonance energy transfer (FRET) induced by the localized surface plasmo
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Yang, Chin-Tsung, and 楊謹聰. "The photocatalysts of Bismuth silicate and bismuth silicate/graphitic carbon nitride composites: Synthesis, characterization, activity, and their photocatalytic degradation of the organic pollutants." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/15967987415189424961.

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碩士<br>國立臺中教育大學<br>科學教育與應用學系碩士班<br>104<br>In this study, a series of the bismuth silicate and bismuth silicate composite graphitic carbon nitride (g-C3N4) are prepared using autoclave hydrothermal methods. The novel heterojunctions of BixSiOy/g-C3N4 is fabricated by the hydrothermal method for the first time, in which g-C3N4 is synthesized by calcinations at 540℃ in muffle furnace. Bismuth silicate is prepared by Bi(NO3)3 and Na2SiO3, dissolved in an 1M HNO3 aqueous solution and adjusted the pH value, and then the aqueous solution is transferred into a 15 mL Teflon-lined autoclave and is heated
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CHEN, TSAI-TING, and 陳采庭. "The Photocatalysts of Bismuth Silicate/ Graphene Oxide and Bismuth Silicate/ Graphitic Carbon Nitride Composites: Synthesis, Characterization, Activity, and Their Photocatalytic Degradation of Organic Pollutants." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/8kq84h.

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碩士<br>國立臺中教育大學<br>科學教育與應用學系碩士在職專班<br>105<br>In this study, bismuth silicate and bismuth silicate composite graphene oxide (GO) and composite graphitic carbon nitride (g-C3N4) are prepared using autoclave hydrothermal methods. The novel heterojunctions of Bi12SiO20/GO and Bi12SiO20/g-C3N4 are fabricated by the hydrothermal method for the first time. Bismuth silicate is prepared by Bi(NO3)3 and Na2SiO3, dissolved in an 3M NaOH aqueous solution and adjusted the pH value . The aqueous solution is then transferred into a 15 mL Teflon-lined autoclave and heated to 100oC for 4 hours. Bi12SiO20/GO or
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"Nanoscale Heterogeneities in Visible Light Absorbing Photocatalysts: Connecting Structure to Functionality Through Electron Microscopy and Spectroscopy." Doctoral diss., 2019. http://hdl.handle.net/2286/R.I.55547.

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abstract: Photocatalytic water splitting over suspended nanoparticles represents a potential solution for achieving CO2-neutral energy generation and storage. To design efficient photocatalysts, a fundamental understanding of the material’s structure, electronic properties, defects, and how these are controlled via synthesis is essential. Both bulk and nanoscale materials characterization, in addition to various performance metrics, can be combined to elucidate functionality at multiple length scales. In this work, two promising visible light harvesting systems are studied in detail: Pt-functi
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Fronczak, Maciej. "Adsorpcja związków organicznych i jonów metali na grafitopodobnym azotku węgla i materiałach węglowych." Doctoral thesis, 2018. https://depotuw.ceon.pl/handle/item/3107.

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Niniejsza rozprawa opisuje syntezę, badania fizykochemiczne oraz systematyczne badania właściwości adsorpcyjnych dwóch typów adsorbentów: (i) materiałów opartych na grafitopodobnym azotku węgla oraz (ii) materiałów węglowych. Materiały te dedykowane są do usuwania związków organicznych i/lub jonów metali z roztworów wodnych. Materiały oparte na grafitopodobnym azotku węgla modyfikowano poprzez domieszkowanie litowcami (lit, sód, potas) lub berylowcami (magnez, wapń, stront, bar). Uzyskane produkty szczegółowo przeanalizowano w celu określenia morfologii, składu chemicznego i fazowego, fizykoch
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