Metal Oxide Nanocomposites For Photocatalysis Investigated
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Metal Oxide Nanocomposites For Photocatalysis Investigated
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Author : Mahendr
language : en
Publisher:
Release Date : 2023-03-17
Metal Oxide Nanocomposites For Photocatalysis Investigated written by Mahendr and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-03-17 with Education categories.
Metal oxide nanocomposites have been widely investigated for their photocatalytic applications due to their excellent properties such as high surface area, unique electronic structure, and high stability. These nanocomposites have shown potential for various environmental and energy applications, including wastewater treatment, air purification, and solar energy conversion. One of the key advantages of metal oxide nanocomposites is their ability to harness solar energy and convert it into useful energy or chemical reactions through photocatalysis. This process involves the absorption of photons by the metal oxide nanoparticles, which excites electrons to higher energy levels and creates electron-hole pairs. These electron-hole pairs then participate in redox reactions with adsorbed species on the surface of the nanoparticles, leading to the degradation of pollutants or the production of valuable chemicals. Several metal oxide nanocomposites have been investigated for photocatalytic applications, including titanium dioxide (TiO2), zinc oxide (ZnO), and iron oxide (Fe2O3). These nanocomposites have been modified with various materials such as carbon, graphene, and other metal oxides to improve their photocatalytic performance In conclusion, metal oxide nanocomposites have shown great potential for photocatalytic applications due to their unique properties and high stability. Researchers have modified these nanocomposites with various materials to enhance their photocatalytic performance for different applications. The development of efficient and cost-effective photocatalysts is essential for addressing the environmental and energy challenges faced by our society, and metal oxide nanocomposites offer a promising solution.
Metal Oxide Nanocomposites
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Author : B. Raneesh
language : en
Publisher: John Wiley & Sons
Release Date : 2021-02-17
Metal Oxide Nanocomposites written by B. Raneesh and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-17 with Technology & Engineering categories.
Metal Oxide Nanocomposites: Synthesis and Applications summarizes many of the recent research accomplishments in the area of metal oxide-based nanocomposites. This book focussing on the following topics: Nanocomposites preparation and characterization of metal oxide nanocomposites; synthesis of core/shell metal oxide nanocomposites; multilayer thin films; sequential assembly of nanocomposite materials; semiconducting polymer metal oxide nanocomposites; graphene-based metal and metal oxide nanocomposites; carbon nanotube–metal–oxide nanocomposites; silicon mixed oxide nanocomposites; gas semiconducting sensors based on metal oxide nanocomposites; metal ]organic framework nanocomposite for hydrogen production and nanocomposites application towards photovoltaic and photocatalytic.
Metal Oxide Based Photocatalysis
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Author : Adriana Zaleska-Medynska
language : en
Publisher: Elsevier
Release Date : 2018-04-09
Metal Oxide Based Photocatalysis written by Adriana Zaleska-Medynska and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-09 with Technology & Engineering categories.
Metal Oxide-Based Photocatalysis: Fundamentals and Prospects for Application explains the principles and fundamentals of metal oxide-based photocatalysis and the requirements necessary for their use in photocatalysis. It also discusses preparation methods for photocatalysis, and the advantages, disadvantages and achievements of the most important metal oxides (TiO2, ZnO, Fe2O3, Ta2O3, CuO, NiO, Cr2O3, RuO2, etc.). The book concludes with the most important photocatalytic applications and an overview of the future. Applications are organized by potential needs and solutions, addressing such areas as water treatment, hydrogen production, air treatment, chemical synthesis, and applications in medicine and construction. Provides coverage of applications, presenting needs and solutions Covers essential applications, such as water treatment, hydrogen production, air depollution, medical applications, and much more Includes the characterization of the most important metal oxides used in heterogeneous photocatalysis
Synthesis And Characterization Of Some Nanostructured Materials For Visible Light Driven Photo Processes
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Author : Rania Elhadi Adam
language : en
Publisher: Linköping University Electronic Press
Release Date : 2020-03-18
Synthesis And Characterization Of Some Nanostructured Materials For Visible Light Driven Photo Processes written by Rania Elhadi Adam and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-18 with categories.
Nanostructured materials for visible light driven photo-processes such as photodegradation of organic pollutants and photoelectrochemical (PEC) water oxidation for hydrogen production are very attractive because of the positive impact on the environment. Metal oxides-based nanostructures are widely used in these photoprocesses due to their unique properties. But single nanostructured metal oxide material might suffer from low efficiency and instability in aqueous solutions under visible light. These facts make it important to have an efficient and reliable nanocomposite for the photo-processes. The combination of different nanomaterials to form a composite configuration can produce a material with new properties. The new properties which are due to the synergetic effect, are a combination of the properties of all the counterparts of the nanocomposite. Zinc oxides (ZnO) have unique optical and electrical properties which grant it to be used in optoelectronics, sensors, solar cells, nanogenerators, and photocatalysis activities. Although ZnO absorbs visible light from the sun due to the deep level band, it mainly absorbs ultraviolet wavelengths which constitute a small portion of the whole solar spectrum range. Also, ZnO has a problem with the high recombination rate of the photogenerated electrons. These problems might reduce its applicability to the photo-process. Therefore, our aim is to develop and investigate different nanocomposites materials based on the ZnO nanostructures for the enhancement of photocatalysis processes using the visible solar light as a green source of energy. Two photo-processes were applied to examine the developed nanocomposites through photocatalysis: (1) the photodegradation of organic dyes, (2) PEC water splitting. In the first photo-process, we used the ZnO nanoparticles (NPs), Magnesium (Mg)-doped ZnO NPs, and plasmonic ZnO/graphene-based nanocomposite for the decomposition of some organic dyes that have been used in industries. For the second photo-process, ZnO photoelectrode composite with different silver-based semiconductors to enhance the performance of the ZnO photoelectrode was used for PEC reaction analysis to perform water splitting. The characterization and photocatalysis experiment results showed remarkable enhancement in the photocatalysis efficiency of the synthesized nanocomposites. The observed improved properties of the ZnO are due to the synergetic effects are caused by the addition of the other nanomaterials. Hence, the present thesis attends to the synthesis and characterization of some nanostructured materials composite with ZnO that are promising candidates for visible light-driven photo-processes.
Metal Oxide Nanocomposites For Environmental Uv Treatment
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Author : V. S. Paul
language : en
Publisher:
Release Date : 2023-03-15
Metal Oxide Nanocomposites For Environmental Uv Treatment written by V. S. Paul and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-03-15 with Science categories.
Advancement Of Metal Oxide Materials For Photocatalytic Application
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Author : Vitaly Gurylev
language : en
Publisher: Springer Nature
Release Date : 2022-12-07
Advancement Of Metal Oxide Materials For Photocatalytic Application written by Vitaly Gurylev and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-12-07 with Science categories.
This book investigates applicability of various emerging strategies to improve important properties and features of metal oxide materials that can be used further to advance their photocatalytic and photoelectrochemical performances. The range of discussed strategies includes introduction of intrinsic and extrinsic deficiencies, fabrication of heterojunction and utilizing of metal nanoparticles in the form of deposited or embedded formations. Each of them is addressed as separate case in order to reach full and comprehensive assessment of their most fundamental principles and basics as well as accessing pivotal advantages and disadvantages. Furthermore, additional discussion is dedicated to achieving thorough awareness over methods and experimental protocols that are used to realize them and also probing changes which they induce in electronic and geometrical configurations of metal oxide materials. It is believed that this book might become a valuable addition to extend further current knowledge about photocatalysis and material processing.
Nanocomposites For Visible Light Induced Photocatalysis
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Author : Mohammad Mansoob Khan
language : en
Publisher: Springer
Release Date : 2017-09-07
Nanocomposites For Visible Light Induced Photocatalysis written by Mohammad Mansoob Khan and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-07 with Science categories.
This book details the chemistry of visible light-induced photocatalysis using different classes of nanocomposites. Starting with a general introduction and explanation of basic principles and mechanisms of (visible) light-induced photocatalysis in the first two chapters (not omitting a plaidoyer for furthering research and development in this promising field), the following chapters detail the different types and classes of nanocomposites currently used in light-induced photocatalytic applications, including e.g. metal and mixed metal-oxide nanoparticles and –composites, nanoporous materials, polymeric and carbon-based nanocomposites. They explain the characteristics and importance of the different types of nanocomposites, as well as their synthesis and fabrication.In the end of the book an outlook on the unique applications of novel nanocomposites is offered, for example in water treatment and disinfection and removal of pollutants from wastewater, self-cleaning window panes based on photoactive materials, and many more. The book also addresses the challenges in present photocatalytic research, and therefore is a must-read for everybody interested in the developing field of nanocomposites and visible light-induced photocatalysis.
Inorganic Metal Oxide Nanocrystal Photocatalysts For Solar Fuel Generation From Water
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Author : Troy K. Townsend
language : en
Publisher: Springer
Release Date : 2016-10-01
Inorganic Metal Oxide Nanocrystal Photocatalysts For Solar Fuel Generation From Water written by Troy K. Townsend and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-01 with Science categories.
Troy Townsend's thesis explores the structure, energetics and activity of three inorganic nanocrystal photocatalysts. The goal of this work is to investigate the potential of metal oxide nanocrystals for application in photocatalytic water splitting, which could one day provide us with clean hydrogen fuel derived from water and solar energy. Specifically, Townsend's work addresses the effects of co-catalyst addition to niobium oxide nanotubes for photocatalytic water reduction to hydrogen, and the first use of iron oxide 'rust' in nanocrystal suspensions for oxygen production. In addition, Townsend studies a nickel/oxide-strontium titanate nanocomposite which can be described as one of only four nanoscale water splitting photocatalysts. He also examines the charge transport for this system. Overall, this collection of studies brings relevance to the design of inorganic nanomaterials for photocatalytic water splitting while introducing new directions for solar energy conversion.
Theoretical Concepts Of Photocatalysis
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Author : Mohammad Mansoob Khan
language : en
Publisher: Elsevier
Release Date : 2023-01-13
Theoretical Concepts Of Photocatalysis written by Mohammad Mansoob Khan and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-13 with Technology & Engineering categories.
Theoretical Concepts of Photocatalysis offers a systematic overview of photocatalysis while also exploring the theory and experimental studies of charge carrier dynamics. Introducing the fundamental concepts of photocatalytic reactions involving different types of photocatalysts for various applications, including the treatment of water and air, in food packaging, and in the biomedical and medical fields, the book shows different classes of photocatalysts for novel energy and environmental related applications. In addition, significant advantages, such as its low cost, high efficiency, harmlessness and stability are discussed alongside future perspectives and challenges related to photocatalysis. Focusing on nanostructure control, synthesis methods, activity enhancement strategies, environmental applications, and perspectives of semiconductor-based nanostructures, this book offers guidelines for designing new semiconductor-based photocatalysts with low cost and high efficiency to meet the demands of the efficient utilization of solar energy in the area of energy production and environment remediation. Covers the different types of photocatalysts and related photocatalytic reactions Offers theoretical and practical concepts of energy and environmental applications Summarizes the fundamentals of semiconductor-based nanomaterials
Synthesis Characterization And Applications Of Nanomaterials In The Field Of Photocatalysis
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Author : Shamaila Sajjad
language : en
Publisher: GRIN Verlag
Release Date : 2011-08-17
Synthesis Characterization And Applications Of Nanomaterials In The Field Of Photocatalysis written by Shamaila Sajjad and has been published by GRIN Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08-17 with Technology & Engineering categories.
Doctoral Thesis / Dissertation from the year 2011 in the subject Chemistry - Materials Chemistry, East China University of Science and Technology (-), language: English, abstract: Considerable effort has been made to design, fabricate, and manipulate nanostructured materials by innovative approaches. The precise control of nanoscale structures will pave the way not only for elucidating unique size/shape dependent physicochemical properties but also for realizing new applications in science and technology. Nanotechnology offers unprecedented opportunities for improving our daily lives and the environment in which we live. This thesis mainly describes recent progress in the design, fabrication, and modification of nanostructured semiconductor materials for environmental applications. The scope of this thesis covers TiO2, Bi2O3 and BiOCl materials, focusing particularly on TiO2-based nanostructures (e.g., pure, doped, coupled, mesoporous, hierarchically porous, and ordered mesoporous TiO2). Mesoporous titania is of particular interest since this class of materials possesses well-defined porosity and large specific surface areas. For photocatalytic degradation of organics, these desirable properties are anticipated to improve the efficiency. So in the first part of work, I have synthesized the mesoporous titania by using poly ethylene glycol as a template in dilute acetic acid aqueous solution by hydrothermal process and investigated the effect of PEG molecular weights and thermal treatment on the resultant structure and photocatalytic activity. When the molecular weights of PEG vary from 600 to 20,000, the particle sizes of mesoporous-TiO2 structure decrease from 15.1 to 13.3 nm and mean pore sizes increase from 6.9-10.6 nm. The activities of these mesoporous-TiO2 photocatalysts prepared by using PEG are evaluated and compared with Degussa P-25 using chloro-phenol as a testing compound. [...]