This book explores the modification of various synthesis processes to enhance the phoatalytic activity in varied applications in the fields of environmental remediation and energy production. It outlines the enhancement of phoatalytic activity via alloys synthesis, thin film coatings, electro-spun nanofibers and 3D printed phoatalysts. The book further states the diverse applications of materials for degrading organic pollutants and airborne pathogens, improving indoor air quality and as a potential antimicrobial agent. The application of phoatalysts in green organic synthesis, biomedical field and in hydrogen evolution are also presented in the book. It covers theoretical studies of phoatalytic material and conversion of CO
2
to value added chemical feed sks. The book is of relevance to researchers in academia and industry alike in the fields of material science, environmental science & technology, phoatalytic applications andin energy generation and conversion.