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.

The reprint "Advances in Heterojunction Photocatalysts" encapsulates pivotal research from a Special Issue of the same name in the journal Catalysts, showcasing advances in sustainable energy and environmental solutions via photocatalysis. This collection of 15 key studies advances our understanding and application of heterojunction photocatalysts-materials designed to efficiently convert solar energy and degrade pollutants due to enhanced charge separation. The reprint includes 13 research articles that cover a broad spectrum of topics, from novel photocatalyst design to the latest advancements in the field. These works showcase not only scientific breakthroughs but also the promising application of heterojunction photocatalysts in areas like environmental remediation and renewable energy generation. Aimed at a diverse audience, the publication serves both as a scientific compendium and a beacon for the potential of photocatalytic materials in fostering a sustainable future. It invites the global scientific community to delve deeper into photocatalysis, continuing the journey of exploration and innovation for societal and environmental improvements.

S-scheme Heterojunction Photocatalysts Fundamentals and Applications clearly describes photocatalytic processes and mechanisms, reviews the history of traditional heterojunction, discusses the problems of charge transfer in some heterojunctions, states the necessity in proposing S-scheme photocatalyst, and provides, in detail, the design principles and characterization protocols for the emerging S-scheme heterojunction. Examples of S-scheme heterojunctions classified by material types are summarized, and the book provides a comprehensive discussion on design, fabrication, principle, mechanism, characterization, and application of S-scheme heterojunction photocatalyst. This book provides state-of-art research frontiers in this area that will appeal to experienced researchers and graduate students, as well as research and development scientists in the nanosized-composite-related industry. Provides the latest advances in this topic area, offering insights into the materials and applications of the hybrid materials Helps distinguish correct explanations from invalid ones and clears up historical misunderstandings in the field Provides new perspectives in charge carrier migration Enlightens readers to help them design and develop novel photocatalysts of their own with improved efficiency

This book provides an overview of 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.

This book demonstrates the basic and fundamental aspects of nanotechnology and potential application as a photocatalysis in multiple application especially in environment and energy harvesting. This book also contains methods of preparation and characterization of unique nanostructured photocatalysts, and details about their catalytic action. The book consists of seven chapters, including the principles and fundamentals of heterogeneous photocatalysis; the mechanisms and dynamics of surface photocatalysis; research on pure and composites based materials with unique nanostructures; the latest developments and advances in exploiting photocatalyst alternatives to WO3; and photocatalytic materials for applications other than the traditional degradation of pollutants, such as carbon dioxide reduction, water oxidation, a complete spectrum of selective organic transformations and water splitting by photocatalytic reduction. This book will appeal to a wide readership of the academic and industrial researchers and it can also be used in the classroom for undergraduate and graduate students focusing on heterogeneous photocatalysis, sustainable chemistry, energy conversion and storage, nanotechnology, chemical engineering, environmental protection, optoelectronics, sensors, and surface and interface science.

Research for the development of more efficient photocatalysts has experienced an almost exponential growth since its popularization in early 1970’s. Despite the advantages of the widely used TiO2, the yield of the conversion of sun power into chemical energy that can be achieved with this material is limited prompting the research and development of a number of structural, morphological and chemical modifications of TiO2 , as well as a number of novel photocatalysts with very different composition. Design of Advanced Photocatalytic Materials for Energy and Environmental Applications provides a systematic account of the current understanding of the relationships between the physicochemical properties of the catalysts and photoactivity. The already long list of photocatalysts phases and their modifications is increasing day by day. By approaching this field from a material sciences angle, an integrated view allows readers to consider the diversity of photocatalysts globally and in connection with other technologies. Design of Advanced Photocatalytic Materials for Energy and Environmental Applications provides a valuable road-map, outlining the common principles lying behind the diversity of materials, but also delimiting the imprecise border between the contrasted results and the most speculative studies. This broad approach makes it ideal for specialist but also for engineers, researchers and students in related fields.

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.

Photocatalysis is important in fighting environmental pollution, such as pharmaceutical effluents, dyes, pesticides and endocrine disruptors. It is also used for the production of clean energy, e.g. by way of hydrogen production from watersplitting, or CO2 conversion into fuels. Further, photocatalytic N2 fixation is promising for achieving sustainable ammonia synthesis. The book discusses new materials and reaction engineering techniques, such as heterojunction formations, composites, ion exchangers, photocatalytic membranes, etc. Keywords: Photocatalysis, Pollutant Degradation and Mineralization, Pharmaceutical Effluents, Dyes, Pesticides, Endocrine Disruptors, Water Detoxification, Photocatalytic Hydrogen Production, CO2 Conversion into Fuels, N2 Fixation, Degradation of Organic Molecules, Heavy Metal Removal from Water, Photocatalytic Membranes, Carbon Nitride for Photocatalytic Applications, Carbon Nanotubes, Nanohybrids, Composite Ion Exchangers, Perovskites-based Nano Heterojunctions.

Heterostructured Photocatalysts for Solar Energy Conversion provides a comprehensive description of novel z-scheme hybrid materials based on metal oxide or chalcogenides-based semiconductor, or carbon-based nanomaterials (conducting polymers, graphene, and other carbon materials). The book explores energy conversion applications, such as hydrogen generation, water splitting, CO2 reduction or degradation of organic pollutants, and their associated new material and technology development. The book addresses a variety of topics, such as photochemical processes, materials and fabrication, degradation mechanisms, as well as challenges and strategies. The book includes in-depth discussions ranging from comprehensive understanding, to engineering of materials and applied devices. The concept of visible light active catalysis emerged in recent decades and continues to attract the scientific community. Driven primarily by an opportunity to develop novel multifunctional materials on one hand, and sustainable technologies on the other, several successful approaches have been explored. However, preparation, characterization, and application of visible light active Z-scheme heterojunction-based catalytic nanostructures are still at the foreground of research activity. - Provides an overview on recently developed Z-scheme photocatalysts to stress their performance as catalysts - Covers most of the important topics in photocatalysis - Explores the most recent advances in synthesis to enable deeper understanding of the principles underlying electronic behavior of catalytic nanostructures, mechanistic details, and the evaluation of their effectiveness, as well as perspectives in solar light harvesting - Serves as a valuable resource for better understanding of the current state of photocatalysis research and its possible applications in energy domain

Photocatalytic Systems by Design: Materials, Mechanisms and Applications explores various aspects of photocatalysis, including the photocatalytic phenomenon and process, applications, and the design of photocatalysts via band gap engineering. The book also covers band edge position engineering for multiple photocatalytic applications, such as pollutant degradations, hydrogen production, CO2 reduction into hydrocarbon fuels, antimicrobial disinfections, organic synthesis, N2 fixation, and more. This book is designed to enable beginners to learn the concepts and applications of photocatalysis. Unlike conventional books on photocatalysis, the book provides a 360° perspective into the field of photocatalysis and serves as an informative handbook for all audiences. - Addresses all concepts and applications of photocatalysis - Covers the fundamentals, including mechanisms of photocatalytic materials - Describes the various material systems and engineering of photocatalysts - Offers insight into the schemes for photocatalysis of various materials - Discusses the application-specific design of photocatalysts