HIGHLY ACTIVE PHOTOCATALYST AND PROCESS FOR PRODUCING THE SAME

摘要

A photocatalyst which has high catalytic activity, is nontoxic, has a long life, can function in photocatalytic reactions using visible light as it is, and is useful especially for hydrogen generation. The photocatalyst contains a cadmium compound and has a capsule structure having an average particle diameter of 100 nm or smaller. It can be produced by dropping a cadmium salt solution into a sodium compound solution or by adding a sodium compound solution to a suspension of cadmium compound particles and mixing them.