CATALYTIC MATERIAL FOR REMOVING ENVIRONMENTAL POLLUTION GAS AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a catalyst having high durability by coating or covering the surface of ceramics, sand, or the like uniformly with metal having high catalytic action in order to efficiently reduce environmental pollution gas such as NOx. SOLUTION: Ceramic, sand, glass, charcoal or the like is coated or covered with an aqueous solution of a compound of metal having high catalytic action and an organic acid as a working liquid and is heat-treated.