This book contains two chapters namely catalytic materials for biodiesel production and catalytic materials for photocatalysis. Herein, several catalytic materials were discussed. This book is very useful to know about various catalytic materials and their properties. Recently, several research works have been focused to develop novel active materials for several applications predominately in energy-related applications. we hope this book may help the students to understand catalytic materials particularly in biodiesel production and photocatalysis.