Download or read book Novel strategies to design and construct efficient semiconductor based photocatalyst for enhancing photocatalytic hydrogen evolution and nitrogen fixation under sunlight irradiation written by Manh Hiep Vu and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Résumé en anglais
Download or read book Semiconductor Solar Photocatalysts written by Jiaguo Yu and published by John Wiley & Sons. This book was released on 2022-03-14 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a timely overview of basic principles and significant advances of semiconductor-based photocatalysts for solar energy conversion Semiconductor Solar Photocatalysts: Fundamentals and Applications presents a systematic, in-depth summary of both fundamental and cutting-edge research in novel photocatalytic systems. Focusing on photocatalysts with vast potential for efficient utilization of solar energy, this up-to-date volume covers heterojunction systems, graphene-based photocatalysts, organic semiconductor photocatalysts, metal sulfide semiconductor photocatalysts, and graphitic carbon nitride-based photocatalysts. Organized into six chapters, the text opens with a detailed introduction to the history, design principles, modification strategies, and performance evaluation methods of solar energy photocatalysis. The remaining chapters provide detailed discussion of various novel photocatalytic systems such as direct Z-scheme and S-scheme photocatalysts, organic polymers, and covalent organic frameworks. This authoritative resource: Explains the essential concepts of solar energy photocatalysis and heterojunction systems for photocatalysis Reviews interesting structures and new applications of semiconductor photocatalysts Features contributions from an international panel of leading researchers in the field Includes extensive references and numerous tables, figures, and color illustrations Semiconductor Solar Photocatalysts: Fundamentals and Applications is valuable resource for all catalytic chemists, materials scientists, inorganic and physical chemists, chemical engineers, and physicists working in the semiconductor industry.
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.
Download or read book Photocatalytic Hydrogen Evolution written by Misook Kang and published by MDPI. This book was released on 2020-06-17 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy crises and global warming pose serious challenges to researchers in their attempt to develop a sustainable society for the future. Solar energy conversion is a remarkable, clean, and sustainable way to nullify the effects of fossil fuels. The findings of photocatalytic hydrogen production (PCHP) by Fujishima and Honda propose that “water will be the coal for the future”. Hydrogen is a carbon-free clean fuel with a high specific energy of combustion. Titanium oxide (TiO2), graphitic-carbon nitride (g-C3N4) and cadmium sulfide (CdS) are three pillars of water splitting photocatalysts owing to their superior electronic and optical properties. Tremendous research efforts have been made in recent years to fabricate visible or solar-light, active photocatalysts. The significant features of various oxide, sulfide, and carbon based photocatalysts for cost-effective hydrogen production are presented in this Special Issue. The insights of sacrificial agents on the hydrogen production efficiency of catalysts are also presented in this issue.
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.
Download or read book Visible Light Active Photocatalysis written by Srabanti Ghosh and published by John Wiley & Sons. This book was released on 2018-03-23 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive and timely overview of this important and hot topic, with special emphasis placed on environmental applications and the potential for solar light harvesting. Following introductory chapters on environmental photocatalysis, water splitting, and applications in synthetic chemistry, further chapters focus on the synthesis and design of photocatalysts, solar energy conversion, and such environmental aspects as the removal of water pollutants, photocatalytic conversion of CO2. Besides metal oxide-based photocatalysts, the authors cover other relevant material classes including carbon-based nanomaterials and novel hybrid materials. Chapters on mechanistic aspects, computational modeling of photocatalysis and Challenges and perspectives of solar reactor design for industrial applications complete this unique survey of the subject. With its in-depth discussions ranging from a comprehensive understanding to the engineering of materials and applied devices, this is an invaluable resource for a range of disciplines.
Download or read book Heterojunction Photocatalytic Materials written by A. Pandikumar and published by CRC Press. This book was released on 2022-06-30 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean environment and green energy are the basic requirements of a sustainable human life. Semiconductor materials play a crucial role in addressing the issues related to increased global energy demand and environmental remediation. The development of photocatalysts has experienced almost exponential progress since their popularization in the early 1970s. Therefore, researchers have started to consider the diversity of photocatalysts globally by approaching this domain from a materials science perspective for applications in various areas. Recently, heterojunction photocatalytic materials have attracted a great amount of multidisciplinary research to face the global concerns of energy production and environmental protection. The unique potential of these technologies has been the stimulus to develop heterojunction photocatalysts with improved structural, morphological, and electronic properties, effectively increasing their efficiency. This book overviews the latest advances in this field, offering insights into the materials and applications of the latest generation of photocatalytic materials. It presents the challenges, future directions, and strategies for design within the area of heterojunction photocatalysts and will be a useful resource to enhance understanding of students, researchers, and academicians for promoting research in this field.
Download or read book Investigation into High Efficiency Visible Light Photocatalysts for Water Reduction and Oxidation written by David James Martin and published by Springer. This book was released on 2015-05-14 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes novel strategies for the rational design of several cutting-edge high-efficiency photocatalysts, for applications such as water photooxidation, reduction, and overall splitting using a Z-Scheme system. As such, it focuses on efficient strategies for reducing energy loss by controlling charge transfer and separation, including novel faceted forms of silver phosphate for water photooxidation at record high rates, surface-basic highly polymerised graphitic carbon nitride for extremely efficient hydrogen production, and the first example of overall water splitting using a graphitic carbon nitride-based Z-Scheme system. Photocatalytic water splitting using solar irradiation can potentially offer a zero-carbon renewable energy source, yielding hydrogen and oxygen as clean products. These two ‘solar’ products can be used directly in fuel cells or combustion to provide clean electricity or other energy. Alternatively they can be utilised as separate entities for feedstock-based reactions, and are considered to be the two cornerstones of hydrogenation and oxidation reactions, including the production of methanol as a safe/portable fuel, or conventional catalytic reactions such as Fischer-Tropsch synthesis and ethylene oxide production. The main driving force behind the investigation is the fact that no photocatalyst system has yet reported combined high efficiency, high stability, and cost effectiveness; though cheap and stable, most suffer from low efficiency.
Download or read book MXene Based Photocatalysts written by Zuzeng Qin and published by CRC Press. This book was released on 2022-02-20 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: MXene, a two-dimensional (2D) transition metal carbide, nitride, and carbonitride, was discovered in 2011. MXene has great potential as a cocatalyst in the field of photocatalysis due to its unique properties and structure. MXene-Based Photocatalysts: Fabrication and Applications introduces readers to the fundamentals, preparation, microstructure characterization, and a variety of applications of MXene-based photocatalysts. The book is a comprehensive reference for MXene materials and provides an overview of the current literature on MXene-based photocatalysts. FEATURES Discusses preparation methods of MXenes Describes the morphology and microstructure of MXenes Offers strategies for fabricating MXene-based photocatalysts Details the reaction mechanism of MXene-based photocatalysts Covers applications in photocatalytic water-splitting, photocatalytic CO2 reduction, photocatalytic degradation, photocatalytic nitrogen fixation, and photocatalytic H2O2 production This book serves as an invaluable guide for advanced students, industry professionals, professors, and researchers in the field of materials science and engineering, photocatalysis, energy, and environmental applications.
Download or read book Exploring Visible light responsive Photocatalysts for Water Splitting Based on Novel Band gap Engineering Strategies written by Jikai Liu and published by . This book was released on 2013 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing demand for renewable energy is driving innovations in both science and technology. Hydrogen has been broadly identified as a potential clean energy carrier due to its high energy capacity (enthalpy of combustion is as high as 286 kJ/mol) and environmental friendliness (the only product after burning is water). Meanwhile, solar energy is renewable, abundant and easily available. Solar-driven H2 production from water has therefore attracted global attention in the past decades since the first report of photoelectrochemical (PEC) water splitting based on an n-type TiO2 photoanode. Many semiconductor-based materials have been synthesized and studied for their photocatalytic or PEC performance. Among them, visible-light-active photocatalytsts are more promising since the energy of the visible-light region takes up a large proportion of the whole solar spectrum. Herein, we found two novel groups of compounds, e.g. copper borates and boron carbides. We investigated the origins and performances of their photocatalytic water splitting under visible light irradiation. It is found that the visible light activities of the two groups are resulted from different band-gap engineering mechanisms. For the two copper borates compounds, e.g. CuB2O4 and Cu3B2O6, we found that the visible light activity is from the intrinsic midgap states in the two compounds. Both midgap states serve as an electron acceptor level, but they function very differently in the two copper borates. For CuB2O4, the midgap states facilitate the visible light absorption for photocatalytic water splitting, while for Cu3B2O6, the midgap states trap electrons and reduce the photocatalytic activity. For the two boron carbides, e.g. B4.3C and B13C2, they exhibit efficient photocatalytic H2 evolution and PEC H2 evolution as a stable photocathode under visible light irradiation. Interestingly, it is found that the inherent defects and structural distortions in B4.3C cause a continuum downshift of its conduction band (CB) edge that facilitates visible-light absorption and water splitting based on density functional theory (DFT) calculations. In B13C2, however, the more complicated structural defects and distortions result in a large number of midgap states between the CB and the valence band (VB), which reduce its overall photocatalytic and PEC water splitting efficiency by promoting charge recombination.
Download or read book UV Visible Photocatalysis for Clean Energy Production and Pollution Remediation written by Xinchen Wang and published by John Wiley & Sons. This book was released on 2023-02-28 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: UV-Visible Photocatalysis for Clean Energy Production and Pollution Remediation Comprehensive resource detailing fundamentals of photocatalysis, clean energy production, and pollution treatment, as well as recent developments in each field UV-Visible Photocatalysis for Clean Energy Production and Pollution Remediation: Materials, Reaction Mechanisms, and Applications provides current developments in photocatalytic reactions for both inorganic and organic-based materials which operate under UV-visible light or sunlight irradiation, with a focus on the fundamentals and applications in clean energy production and pollution remediation. The text curates interesting and important research surrounding photocatalysis for hydrogen production, including the fundamentals and photocatalytic remediation of our better environments, which covers the reduction of CO2 and fixation of N2 with H2O under UV-visible light or sunlight irradiation. The first chapter of the book introduces these diverse subjects by including a brief history of the developments of photocatalysis research since around the 1960s. Specific sample topics covered in this book include: Visible-light active photocatalysts in pollutant degradation and conversion with simultaneous hydrogen production Application of S-scheme heterojunction photocatalyst and the role of the defects on the photocatalytic reactions on ZnO Strategies for promoting overall water splitting with particulate photocatalysts via single-step visible-light photoexcitation Polymeric carbon nitride-based materials in aqueous suspensions for water photo-splitting and photo-reforming of biomass aqueous solutions to generate H2 Visible light-responsive TiO2 thin film photocatalysts for the separate evolution of H2 and O2 from water For chemists, scientists, physicists, and engineers across a wide range of disciplines, UV-Visible Photocatalysis for Clean Energy Production and Pollution Remediation is an essential resource for understanding current developments in photocatalytic reactions on both inorganic and organic-based materials which operate under UV-visible light or sunlight irradiation.
Download or read book Optimizing photocatalysts and photoreactors for solar fuel synthesis written by Kant, Paul Philipp and published by KIT Scientific Publishing. This book was released on 2023-12-28 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work represents a toolbox for the design of a highly efficient photocatalytic process for solar-driven synthesis. The focus is the optimization of photoreactors and photocatalysts. The described photoreactor design strategy is based on numerical methods mapping radiation transport and additive manufacturing delivering prototypes. The photocatalyst engineering is based on suitable photocatalyst support strategies and a method for the determination of the quantum yield in photoreactions.
Download or read book Visible Light Photocatalysis of Carbon Based Materials written by Yunjin Yao and published by BoD – Books on Demand. This book was released on 2018-04-18 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon-based photocatalysis has been considered as an economic, safe, renewable, and clean technology, for various applications. However, the pristine carbon material is usually restricted by unsatisfactory photocatalytic efficiency and practical applications due to the insufficient solar light absorption, the low-surface area, and the fast recombination of photogenerated electron-hole pairs. Various modification strategies, such as elemental and molecular doping, preparation of mesoporous carbon materials, and combination of conductive materials, are adopted to enhance the photocatalytic activity of carbon materials. In this book, we intend to describe the great potential of efficient and low-cost carbon-based materials in various realms, such as photodegradation of organic compounds, water splitting, and selective organic transformations.
Download or read book Introduction to Photocatalysis written by Tahir Iqbal Awan and published by CRC Press. This book was released on 2024-06-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the intriguing world of photocatalysis with Introduction to Photocatalysis: Fundamentals and Applications. This book explores the complexities of photocatalytic processes, investigating the contributing elements, nano-photocatalyst manufacturing methodologies, and their wide applications in the energy and environmental sectors. Additionally, sophisticated modification approaches that may be used to improve the efficiency of visible light-driven processes (such as doping and plasmonics photocatalysis) are discussed. Key features include novel methodologies of photocatalysts, providing an insight on fundamentals and methodology; and examples of efficient applications of photocatalysis such as wastewater treatment, hydrogen production and CO2 reduction. Later chapters discuss the commercial aspects of photocatalysis to help guide future entrepreneurs. The book is useful for advanced undergraduates, and graduate students in a range of subjects such as physics, biotechnology, and biochemistry. This book will also prove invaluable for researchers and scientists in photocatalysis, and chemical engineers and chemists in industry R&D working on wastewater treatment and renewable sources of energy. It stands out as a modernized version of current literature that bridges the gap between scholars and students.
Download or read book Preparation and Optimization of Novel Visible Light Active Photocatalysts for Waste Water Treatment written by Rong Ran and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concepts of Semiconductor Photocatalysis written by Mohammed Muzibur Rahman and published by BoD – Books on Demand. This book was released on 2019-12-18 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book "Concepts of Semiconductor Photocatalysis" contains recent research on the preparation, characterization, and potential applications of the semiconductor photocatalyst. This research is promising and has received a lot of interest in the last few decades. The book covers advanced topics on the optical, physical, structural, and electro-catalysis and photo-catalysis applications. Development of new and noble efficient technology is pointing researchers toward the safe, facile, non-toxic, eco-friendly route of synthesis-to-applications, which can be used for manufacture at a large scale. This book presents an overview of the current photocatalyst fundamental theory, substantial applications, and use of the research worldwide. It is an important book for research organizations, government research-centers, academic libraries, and R
Download or read book Advanced Photocatalytic Materials written by Vlassios Likodimos and published by MDPI. This book was released on 2021-09-06 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor photocatalysts have attracted a great amount of multidiscipline research due to their high potential for solar-to-chemical-energy conversion applications, ranging from water and air purification to hydrogen and chemical fuel production. This unique diversity of photoinduced applications has spurred major research efforts on the rational design and development of photocatalytic materials with tailored structural, morphological, and optoelectronic properties in order to promote solar-light harvesting, easy photogenerated electron-hole recombination and the concomitant low quantum efficiency. This book presents a collection of original research articles on advanced photocatalytic materials, synthesized by novel fabrication approaches and/or innovative modifications that improve their performance in target photocatalytic applications such as water (cyanobacterial toxins, antibiotics, phenols, and dyes) and air (NOx and volatile organic compounds) pollutant degradation, hydrogen evolution, and hydrogen peroxide production by photoelectrochemical cells.
