▎ 摘　　要

NOVELTY - A supported photocatalyst comprises metal mesh, metal oxide layer formed on the surface of metal mesh, and coating layer formed on surface of the metal oxide layer. The coating layer comprises organic compound and photocatalyst particles. The organic compound is formed by copolymerizing vinylpyrrolidone and waterproof organic polymer monomer. USE - Supported photocatalyst. ADVANTAGE - The supported photocatalyst has improved efficiency of photocatalytic degradation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation of the supported photocatalyst comprising taking metal mesh, and forming metal oxide layer on surface; mixing vinylpyrrolidone and waterproof organic polymer monomer to obtaing copolymer organic compound, dispersing organic compound and photocatalyst particles in solvent to obtain coating liquid, coating on surface of metal oxide layer, and curing.