This book provides a comprehensive overview of catalysis and its applications in environmental protection. It covers a wide range of topics such as the structure and chemistry of catalytic agents, exploring their fundamental properties and characterization techniques and methods for preparing these agents. One of the key highlights of this book is the review of recent advances and emerging applications in different fields. It examines the use of catalysis in antimicrobial therapy, biomedical applications, water purification, and clean energy for environmental sustainability. This book is a valuable resource for understanding catalysiss fundamentals, advancements, and applications in environmental protection. Its interdisciplinary approach makes it a must-read for individuals seeking to explore the potential of catalytic materials in achieving energy and environmental sustainability goals. The book aims to provide valuable insights and knowledge to researchers, scientists, and students across various sectors by exploring these cutting-edge applications.