▎ 摘　　要

NOVELTY - Preparation of a photocatalyst comprises mixing and ultrasonic dispersing 1 pts. wt. copper acetate, 1-3 pts. wt. malic acid, 5-8 pts. wt. cobalt chloride, 10-15 pts. wt. sodium sulfide, 0.05-0.1 pts. wt. modified graphene oxide, and 30-40 pts. wt. water to prepare an aqueous solution; first time stirring, dropwise adding 2-3 pts. wt. tributyl borate to the aqueous solution, second time stirring, and heating the reaction to obtain an intermediate product; and calcining, washing, drying, and reducing. The modified graphene oxide is prepared by doping graphene oxide with nitrogen and silicon, and modifying with N-2-aminoethyl-3-aminopropyltrimethoxysilane. USE - The method is used in preparing a photocatalyst for degrading organic pollutants in industrial wastewater (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the photocatalyst.