▎ 摘　　要

NOVELTY - Preparation of composite photocatalyst involves pretreating hollow glass microbeads, mixing the pretreated hollow glass microbeads with a graphene oxide dispersion, placing obtained microbead composite material in a titanium dioxide precursor, and reacting at 100-200 degrees C and 1-5 MPa for 4-12 hours under stirring at speed of 50-200 rpm. USE - Preparation of composite photocatalyst used in photocatalytic degradation of wastewater (claimed). ADVANTAGE - The method enables preparation of composite photocatalyst with high dispersibility, fluidity and recovery rate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for composite photocatalyst, which comprises hollow glass microbeads, a graphene layer supported on the surface of the hollow glass microbeads, and a titanium dioxide layer supported on the surface of the graphene layer.