▎ 摘　　要

NOVELTY - A composite material comprises ternary metal sulfide and reduced graphene oxide on which ternary metal sulfide is grown. USE - Composite material for photocatalytic decomposition of dye wastewater. ADVANTAGE - The composite material has improved adsorption capacity, absorption intensity, mass transfer efficiency, separation efficiency, photocatalytic performance, stability and strong resistance to photo-corrosion, and is economical and prepared by simple method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for production of composite material, which involves mixing graphene oxide with water, ultrasonically peeling to obtain graphene oxide mixed liquid, adding tin source, indium source and sulfur source, stirring to obtain precursor solution, performing hydrothermal reaction, centrifuging, washing and vacuum-drying.