Abstract

Photocatalysis is a unique, gifted method which was invented by Fujishima and Honda in the year 1972. Photocatalysis is one of the most promising technologies for the decomposition of organic and air pollutants. Many photocatalysts have been used over the last decades for the decomposition of various types of pollutants. This book describes the photocatalyst and its diverse applications in the environmental and energy fields. Especially, removal of air and water pollutants, generation of hydrogen, photo fuel cell, electrophotocatalyst, solar energy conversion, and green biophotocatalyst are defined in more depth. Moreover, the role of catalysts along with their chemical reactions, challenges, past developments, and directions for further research on photocatalyst are also discussed here. This book presents necessary knowledge and visualization of the fundamental differences that exist between photocatalytic and photoelectrocatalytic fuel cells to the new researchers in this field, as well as serves as a handy manual to the experienced researchers. The book also deals with the recent developments of quantum dots (QDs) and photocatalytic applications of QDs such as carbon materials like carbon and graphene-based QDs, metal, metal sulfide, and metal oxide-based QDs. It also includes a detailed review on various types of templates used for the preparation of porous g-C3N4 and its applications with special reference to dye degradation, reduction of hexavalent Cr, and reduction of CO2 and for the evolution of H2 photocatalytically. This book offers an intriguing and useful guide for a broad readership in various fields of catalysis, material sciences, environment, and energy.