Influence Of Water On The Photocatalytic Properties Of Synthetic Nanocrystalline Iron Oxide Films

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Influence of Water on the Photocatalytic Properties of Synthetic Nanocrystalline Iron Oxide Films

Author : Angela Janine Arnett Shankle
Publisher : ProQuest
ISBN 13 : 9781109180671
Total Pages : 73 pages
Book Rating : 4.1/5 (86 download)

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Book Synopsis Influence of Water on the Photocatalytic Properties of Synthetic Nanocrystalline Iron Oxide Films by : Angela Janine Arnett Shankle

Download or read book Influence of Water on the Photocatalytic Properties of Synthetic Nanocrystalline Iron Oxide Films written by Angela Janine Arnett Shankle and published by ProQuest. This book was released on 2008 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two sets of synthetic nanocrystalline iron oxide films were grown via Atmospheric Pressure Chemical Vapor Deposition (AP CVD) under identical conditions, barring the exclusion or inclusion of water vapor within the depositional environment. The morphology and electrochemical properties of the resulting films were examined and compared. The presence of water during AP CVD deposition of nanocrystalline silicon doped hematite films impacts the photocatalytic properties of the resulting films. This is likely due to the inhibition of optimal doping of Fe2 O3 by the presence of water during growth. The presence of an amorphous iron phase in the wet preparation films, likely am-FeOOH, was suggested by Raman analysis, and is a possible source of lowered photocurrents in these films. Wet preparation films were found to have a bandgap of 1.96 eV and an estimated film thickness of 214 nm; dry preparation films have a bandgap of 1.9 eV and an estimated film thickness of 412 nm thick. Irrespective of preparation method, the fundamental particle size had an average diameter of about 20 nm. Mott-Schottky analysis was used for donor density calculations; dry preparation films had a donor density of about 8.9*1018 cm-3 and wet films had a donor density of about 5.5*1016 cm-3 . The differences in donor levels result in a significance difference in depletion layer width, which in turn may be responsible for lowered photocurrents in wet preparation films relative to dry preparation films. Cyclic voltammetry indicates that at low applied potentials, loss of efficiency is dominated by intragap state recombination in both preparation methods, but at higher applied potentials, loss of efficiency in dry preparation films is dominated by reduction of radicals in solution by photogenerated electrons, and by intragap state recombination in wet preparation films. Evidence suggests that the intragap state is never fully emptied in the wet preparation films and thus optimum photocurrents are never achieved. The single slope seen in the Mott-Schottky analysis supports this assertion.

21st Century Nanoscience – A Handbook

Author : Klaus D. Sattler
Publisher : CRC Press
ISBN 13 : 1000702863
Total Pages : 369 pages
Book Rating : 4.0/5 (7 download)

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Book Synopsis 21st Century Nanoscience – A Handbook by : Klaus D. Sattler

Download or read book 21st Century Nanoscience – A Handbook written by Klaus D. Sattler and published by CRC Press. This book was released on 2020-04-08 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 21st Century Nanoscience Handbook will be the most comprehensive, up-to-date large reference work for the field of nanoscience. Handbook of Nanophysics by the same editor published in the fall of 2010 and was embraced as the first comprehensive reference to consider both fundamental and applied aspects of nanophysics. This follow-up project has been conceived as a necessary expansion and full update that considers the significant advances made in the field since 2010. It goes well beyond the physics as warranted by recent developments in the field. This seventh volume in a ten-volume set covers bioinspired systems and methods. Key Features: Provides the most comprehensive, up-to-date large reference work for the field. Chapters written by international experts in the field. Emphasises presentation and real results and applications. This handbook distinguishes itself from other works by its breadth of coverage, readability and timely topics. The intended readership is very broad, from students and instructors to engineers, physicists, chemists, biologists, biomedical researchers, industry professionals, governmental scientists, and others whose work is impacted by nanotechnology. It will be an indispensable resource in academic, government, and industry libraries worldwide. The fields impacted by nanophysics extend from materials science and engineering to biotechnology, biomedical engineering, medicine, electrical engineering, pharmaceutical science, computer technology, aerospace engineering, mechanical engineering, food science, and beyond.

Handbook of Smart Photocatalytic Materials

Author : Chaudhery Mustansar Hussain
Publisher : Elsevier
ISBN 13 : 0128190507
Total Pages : 292 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Handbook of Smart Photocatalytic Materials by : Chaudhery Mustansar Hussain

Download or read book Handbook of Smart Photocatalytic Materials written by Chaudhery Mustansar Hussain and published by Elsevier. This book was released on 2020-02-06 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Smart Photocatalytic Materials: Environment, Energy, Emerging Applications and Sustainability provides an intriguing and useful guide to catalysis and materials. The handbook covers applications of smart photocatalytic materials for energy environmental protection and emerging fields. Also covered is the safety risk of Smart Photocatalytic Materials, commercialization, their fate and transportation in the environment, and sustainability. This volume provides a valuable roadmap, outlining common principles behind their use. Every chapter of this volume presents state-of-the-art knowledge on sustainable practices of smart photocatalytic materials (SPMs), including concepts of theory and practice. This handbook is a valued reference for both the academic and industrial researchers looking for recent developments in the field. - Covers all aspects of recent developments in Environmental, Energy and Emerging applications of Smart Photocatalytic Materials - Focuses on advanced applications and future research advancements of Smart Photocatalytic Materials - Emphasizes the sustainability aspect of Smart Photocatalytic Materials - Presents a valuable reference for researchers and students that stimulates interest in designing smart materials

21st Century Nanoscience

Author : Klaus D. Sattler
Publisher : CRC Press
ISBN 13 : 1351260553
Total Pages : 4153 pages
Book Rating : 4.3/5 (512 download)

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Book Synopsis 21st Century Nanoscience by : Klaus D. Sattler

Download or read book 21st Century Nanoscience written by Klaus D. Sattler and published by CRC Press. This book was released on 2022-01-18 with total page 4153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 21st Century Nanoscience Handbook will be the most comprehensive, up-to-date large reference work for the field of nanoscience. Handbook of Nanophysics, by the same editor, published in the fall of 2010, was embraced as the first comprehensive reference to consider both fundamental and applied aspects of nanophysics. This follow-up project has been conceived as a necessary expansion and full update that considers the significant advances made in the field since 2010. It goes well beyond the physics as warranted by recent developments in the field. Key Features: Provides the most comprehensive, up-to-date large reference work for the field. Chapters written by international experts in the field. Emphasises presentation and real results and applications. This handbook distinguishes itself from other works by its breadth of coverage, readability and timely topics. The intended readership is very broad, from students and instructors to engineers, physicists, chemists, biologists, biomedical researchers, industry professionals, governmental scientists, and others whose work is impacted by nanotechnology. It will be an indispensable resource in academic, government, and industry libraries worldwide. The fields impacted by nanoscience extend from materials science and engineering to biotechnology, biomedical engineering, medicine, electrical engineering, pharmaceutical science, computer technology, aerospace engineering, mechanical engineering, food science, and beyond.

TiO2 Nanoparticles

Author : Aiguo Wu
Publisher : John Wiley & Sons
ISBN 13 : 3527347240
Total Pages : 252 pages
Book Rating : 4.5/5 (273 download)

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Book Synopsis TiO2 Nanoparticles by : Aiguo Wu

Download or read book TiO2 Nanoparticles written by Aiguo Wu and published by John Wiley & Sons. This book was released on 2020-06-02 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique book that summarizes the properties, toxicology, and biomedical applications of TiO2-based nanoparticles Nanotechnology is becoming increasingly important for products used in our daily lives. Nanometer-sized titanium dioxide (TiO2) are widely used in industry for different purposes, such as painting, sunscreen, printing, cosmetics, biomedicine, and so on. This book summarizes the advances of TiO2 based nanobiotechnology and nanomedicine, covering materials properties, toxicological research, and biomedical application, such as antibacter, biosensing, and cancer theranostics. It uniquely integrates the TiO2 applications from physical properties, toxicology to various biomedical applications, and includes black TiO2 based cancer theranostics. Beginning with a comprehensive introduction to the properties and applications of nanoparticles, TiO2 Nanoparticles: Applications in Nanobiotechnology, Theranostics and Nanomedicine offers chapters on: Toxicity of TiO2 Nanoparticles; Antibacterial Applications of TiO2 Nanoparticles; Surface Enhanced Raman Spectrum of TiO2 Nanoparticle for Biosensing (TiO2 Nanoparticle Served as SERS Sensing Substrate); TiO2 as Inorganic Photosensitizer for Photodynamic Therapy; Cancer Theranostics of Black TiO2 Nanoparticles; and Neurodegenerative Disease Diagnostics and Therapy of TiO2-Based Nanoparticles. This title: Blends the physical properties, toxicology of TiO2 nanoparticles to the many biomedical applications Includes black TiO2 based cancer theranostics in its coverage Appeals to a broad audience of researchers in academia and industry working on nanomaterials-based biosensing, drug delivery, nanomedicine TiO2 Nanoparticles: Applications in Nanobiotechnology, Theranostics and Nanomedicine is an ideal book for medicinal chemists, analytical chemists, biochemists, materials scientists, toxicologists, and those in the pharmaceutical industry.

Synthetic Sorbent Materials Based on Metal Sulphides and Oxides

Author : D.S. Sofronov
Publisher : Taylor & Francis
ISBN 13 : 1000215156
Total Pages : 132 pages
Book Rating : 4.0/5 (2 download)

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Book Synopsis Synthetic Sorbent Materials Based on Metal Sulphides and Oxides by : D.S. Sofronov

Download or read book Synthetic Sorbent Materials Based on Metal Sulphides and Oxides written by D.S. Sofronov and published by Taylor & Francis. This book was released on 2020-11-06 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetic Sorbent Materials Based on Metal Sulphides and Oxides focuses on development of inorganic nanomaterials for removal of metallic species from the aqueous environment. General synthetic methods to prepare such materials are lacking. This book investigates problems of controlled synthesis of these materials and the effect of their morphological characteristics on their sorption capacity. • Synthesizes experimental data on the synthesis of micro- and nanoparticles of zinc, copper, and cadmium sulfides, iron oxides, and manganese oxyhydroxide. • Discusses controlled synthesis of zinc, cadmium, and copper sulfide particles and their sorption properties. • Describes production of iron oxides (hematite and magnetite) and manganese oxyhydroxide particles. • Features numerous SEM images of the obtained nanostructures and original graphs of various characteristics. • Offers practical recommendations. This book is of interest to researchers and scientists working with inorganic synthesis and properties of sorption materials.

Chemically Deposited Nanocrystalline Metal Oxide Thin Films

Author : Fabian I. Ezema
Publisher : Springer Nature
ISBN 13 : 3030684628
Total Pages : 926 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Chemically Deposited Nanocrystalline Metal Oxide Thin Films by : Fabian I. Ezema

Download or read book Chemically Deposited Nanocrystalline Metal Oxide Thin Films written by Fabian I. Ezema and published by Springer Nature. This book was released on 2021-06-26 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book guides beginners in the areas of thin film preparation, characterization, and device making, while providing insight into these areas for experts. As chemically deposited metal oxides are currently gaining attention in development of devices such as solar cells, supercapacitors, batteries, sensors, etc., the book illustrates how the chemical deposition route is emerging as a relatively inexpensive, simple, and convenient solution for large area deposition. The advancement in the nanostructured materials for the development of devices is fully discussed.

Photocatalysts

Author : Nasser S. Awwad
Publisher : BoD – Books on Demand
ISBN 13 : 1839689730
Total Pages : 252 pages
Book Rating : 4.8/5 (396 download)

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Book Synopsis Photocatalysts by : Nasser S. Awwad

Download or read book Photocatalysts written by Nasser S. Awwad and published by BoD – Books on Demand. This book was released on 2023-04-12 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes fourteen chapters on photocatalysis. It provides a thorough overview of the latest research on photocatalysts and examines recent trends in the field. Chapters address such topics as metal-organic frameworks, semiconductors, self–cleaning coatings and surfaces, the use of “green” agents to fabricate materials, fabrication of advanced nanocomposites for the production of hydrogen, bifunctional catalysts for metal-air batteries, and much more.

Photocatalytic Semiconductors

Author : Aracely Hernández-Ramírez
Publisher : Springer
ISBN 13 : 3319109995
Total Pages : 298 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis Photocatalytic Semiconductors by : Aracely Hernández-Ramírez

Download or read book Photocatalytic Semiconductors written by Aracely Hernández-Ramírez and published by Springer. This book was released on 2014-11-17 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This critical volume examines the different methods used for the synthesis of a great number of photocatalysts, including TiO2, ZnO and other modified semiconductors, as well as characterization techniques used for determining the optical, structural and morphological properties of the semiconducting materials. Additionally, the authors discuss photoelectrochemical methods for determining the light activity of the photocatalytic semiconductors by means of measurement of properties such as band gap energy, flat band potential and kinetics of hole and electron transfer. Photocatalytic Semiconductors: Synthesis, Characterization and Environmental Applications provide an overview of the semiconductor materials from first- to third-generation photocatalysts and their applications in wastewater treatment and water disinfection. The book further presents economic and toxicological aspects in the production and application of photocatalytic materials.

Handbook of Nanomaterials for Wastewater Treatment

Author : Bharat A. Bhanvase
Publisher : Elsevier
ISBN 13 : 0128214996
Total Pages : 1218 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Handbook of Nanomaterials for Wastewater Treatment by : Bharat A. Bhanvase

Download or read book Handbook of Nanomaterials for Wastewater Treatment written by Bharat A. Bhanvase and published by Elsevier. This book was released on 2021-05-05 with total page 1218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Nanomaterials for Wastewater Treatment: Fundamentals and Scale up Issues provides coverage of the nanomaterials used for wastewater treatment, covering photocatalytic nanocomposite materials, nanomaterials used as adsorbents, water remediation processes, and their current status and challenges. The book explores the major applications of nanomaterials for effective catalysis and adsorption, also providing in-depth information on the properties and application of new advanced nanomaterials for wastewater treatment processes. This is an important reference source for researchers who need to solve basic and advanced problems relating to the use of nanomaterials for the development of wastewater treatment processes and technologies. As nanotechnology has the potential to substantially improve current water and wastewater treatment processes, the synthesis methods and physiochemical properties of nanomaterials and noble metal nanoparticles make their performance and mechanisms efficient for the treatment of various pollutants. - Explains the properties of the most commonly used nanomaterials used for wastewater treatment - Describes the major nanoscale synthesis and processing techniques for wastewater treatment - Assesses the major challenges for using nanomaterials on a mass scale for wastewater treatment

Metal Nanocrystals

Author : Kallum M. Koczkur
Publisher : American Chemical Society
ISBN 13 : 0841299013
Total Pages : 164 pages
Book Rating : 4.8/5 (412 download)

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Book Synopsis Metal Nanocrystals by : Kallum M. Koczkur

Download or read book Metal Nanocrystals written by Kallum M. Koczkur and published by American Chemical Society. This book was released on 2020-07-31 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our society depends heavily on metals. They are ubiquitous construction materials, critical interconnects in integrated circuits, common coinage materials, and more. Excitingly, new uses for metals are emerging with the advent of nanoscience, as metal crystals with nanoscale dimensions can display new and tunable properties. The optical and photothermal properties of metal nanocrystals have led to cancer diagnosis and treatment platforms now in clinical trials, while, at the same time, the ability to tune the surface features of metal nanocrystals is giving rise to designer catalysts that enable more sustainable use of precious resources. These are just two examples of how metal nanocrystals are addressing important social needs.

Handbook of Nanomaterials for Industrial Applications

Author : Chaudhery Mustansar Hussain
Publisher : Elsevier
ISBN 13 : 012813352X
Total Pages : 1143 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Handbook of Nanomaterials for Industrial Applications by : Chaudhery Mustansar Hussain

Download or read book Handbook of Nanomaterials for Industrial Applications written by Chaudhery Mustansar Hussain and published by Elsevier. This book was released on 2018-07-19 with total page 1143 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Nanomaterials for Industrial Applications explores the use of novel nanomaterials in the industrial arena. The book covers nanomaterials and the techniques that can play vital roles in many industrial procedures, such as increasing sensitivity, magnifying precision and improving production limits. In addition, the book stresses that these approaches tend to provide green, sustainable solutions for industrial developments. Finally, the legal, economical and toxicity aspects of nanomaterials are covered in detail, making this is a comprehensive, important resource for anyone wanting to learn more about how nanomaterials are changing the way we create products in modern industry. - Demonstrates how cutting-edge developments in nanomaterials translate into real-world innovations in a range of industry sectors - Explores how using nanomaterials can help engineers to create innovative consumer products - Discusses the legal, economical and toxicity issues arising from the industrial applications of nanomaterials

Metal Oxide Nanocomposites

Author : B. Raneesh
Publisher : John Wiley & Sons
ISBN 13 : 1119363578
Total Pages : 432 pages
Book Rating : 4.1/5 (193 download)

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Book Synopsis Metal Oxide Nanocomposites by : B. Raneesh

Download or read book Metal Oxide Nanocomposites written by B. Raneesh and published by John Wiley & Sons. This book was released on 2021-02-17 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Semiconductor Photocatalysis

Author : Wenbin Cao
Publisher : BoD – Books on Demand
ISBN 13 : 9535124846
Total Pages : 678 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Semiconductor Photocatalysis by : Wenbin Cao

Download or read book Semiconductor Photocatalysis written by Wenbin Cao and published by BoD – Books on Demand. This book was released on 2016-08-24 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photocatalysis is a hot topic because it is an environmentally friendly approach toward the conversion of light energy into chemical energy at mild reaction environments. Also, it is well applied in several major areas such as water splitting, bacterial inactivation, and pollutants elimination, which is a possible solution to energy shortage and environmental issues. The fundamental knowledge and the frontier research progress in typical photocatalytic materials, such as TiO2-based and non-TiO2-based photocatalysts, are included in this book. Methods to improve the photocatalytic efficiency and to provide a hint for the rational design of the new photocatalysts are covered.

One-Dimensional Nanostructures

Author : Tianyou Zhai
Publisher : John Wiley & Sons
ISBN 13 : 1118310365
Total Pages : 857 pages
Book Rating : 4.1/5 (183 download)

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Book Synopsis One-Dimensional Nanostructures by : Tianyou Zhai

Download or read book One-Dimensional Nanostructures written by Tianyou Zhai and published by John Wiley & Sons. This book was released on 2012-10-19 with total page 857 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews the latest research breakthroughs and applications Since the discovery of carbon nanotubes in 1991, one-dimensional nanostructures have been at the forefront of nanotechnology research, promising to provide the building blocks for a new generation of nanoscale electronic and optoelectronic devices. With contributions from 68 leading international experts, this book reviews both the underlying principles as well as the latest discoveries and applications in the field, presenting the state of the technology. Readers will find expert coverage of all major classes of one-dimensional nanostructures, including carbon nanotubes, semiconductor nanowires, organic molecule nanostructures, polymer nanofibers, peptide nanostructures, and supramolecular nanostructures. Moreover, the book offers unique insights into the future of one-dimensional nanostructures, with expert forecasts of new research breakthroughs and applications. One-Dimensional Nanostructures collects and analyzes a wealth of key research findings and applications, with detailed coverage of: Synthesis Properties Energy applications Photonics and optoelectronics applications Sensing, plasmonics, electronics, and biosciences applications Practical case studies demonstrate how the latest applications work. Tables throughout the book summarize key information, and diagrams enable readers to grasp complex concepts and designs. References at the end of each chapter serve as a gateway to the literature in the field. With its clear explanations of the underlying principles of one-dimensional nanostructures, this book is ideal for students, researchers, and academics in chemistry, physics, materials science, and engineering. Moreover, One-Dimensional Nanostructures will help readers advance their own investigations in order to develop the next generation of applications.

Application of Nanotechnology in Membranes for Water Treatment

Author : Alberto Figoli
Publisher : CRC Press
ISBN 13 : 1351715267
Total Pages : 366 pages
Book Rating : 4.3/5 (517 download)

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Book Synopsis Application of Nanotechnology in Membranes for Water Treatment by : Alberto Figoli

Download or read book Application of Nanotechnology in Membranes for Water Treatment written by Alberto Figoli and published by CRC Press. This book was released on 2017-07-14 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on Application of Nanotechnology in Membranes for Water Treatment but not only provides a series of innovative solutions for water reclamation through advanced membrane technology but also serves as a medium to promote international cooperation and networking for the development of advanced membrane technology for Universal well-being and to achieve the common goal of supplying economically, environmentally and societally sustainable freshwater and better sanitation systems. This book is unique because the chapters were authored by established researchers all around the globe based on their recent research findings. In addition, this book provides a holistic coverage of membrane development for water treatment, from the membrane preparation and characterizations to the performance for specific processes and applications. Since that water scarcity has become a global risk and one of the most serious challenges for the scientific community in this century, the publication of this book is therefore significant as it will serve as a medium for a good reference of an alternative solution in water reclamation. This book will provide the readers with a thorough understanding of the different available approaches for manufacturing membranes both with innovative polymeric systems and inorganic nano-materials which could give enhanced functionalities, catalytic and antimicrobial activities to improve the performance of the existing membranes. It will be useful for leading decision and policy makers, water sector representatives and administrators, policy makers from the governments, business leaders, business houses in water treatment, and engineers/ scientists from both industrialized and developing countries as well.

Green Photocatalytic Semiconductors

Author : Seema Garg
Publisher : Springer Nature
ISBN 13 : 303077371X
Total Pages : 855 pages
Book Rating : 4.0/5 (37 download)

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Book Synopsis Green Photocatalytic Semiconductors by : Seema Garg

Download or read book Green Photocatalytic Semiconductors written by Seema Garg and published by Springer Nature. This book was released on 2021-09-20 with total page 855 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises a detailed overview on the role of photocatalysts for environmental remediation, hydrogen production and carbon dioxide reduction. Effective ways to enhance the photocatalytic activity of the material via doping, hybrid material, laser light and nanocomposites have been discussed in this book. The book also further elaborates the role of metal nanoparticles, rare earth doping, sensitizers, surface oxygen vacancy, interface engineering and band gap engineering for enhancing the photocatalytic activity. An approach to recover the photocatalytic material via immobilization is also presented. This book brings to light much of the recent research in the development of such semiconductor photocatalytic systems. The book will thus be of relevance to researchers in the field of: material science, environmental science & technology, photocatalytic applications, newer methods of energy generation & conversion and industrial applications.