▎ 摘　　要

NOVELTY - Preparation of high-efficiency composite photocatalyst involves (1) preparing titanium dioxide powder and molybdenum disulfide powder, then preparing titanium dioxide-molybdenum disulfide composite using titanium dioxide and molybdenum disulfide, (2) ultrasonically processing graphene oxide solution, (3) adding titanium dioxide-molybdenum disulfide composite, ultrasonically dispersing to obtain dispersed solution, (4) adding the dispersed solution to autoclave, reacting, and cooling to room temperature, and (5) washing the product, drying and grinding to form reduced graphene/titanium dioxide-molybdenum disulfide composite photocatalyst. USE - Preparation of high-efficiency composite photocatalyst. ADVANTAGE - The preparation method effectively increases the specific surface area of composite material by introducing reduced graphene oxide as carrier, and suppresses recombination phenomenon of photo-generated electrons and holes, so that electrons generated by excitation of titanium dioxide and molybdenum disulfide can transfer to each other, thereby further enhancing its photocatalytic performance and also increasing its recycling characteristics. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation device of the composite photocatalyst, which comprises microwave synthesis reaction device comprising reaction barrel and microwave synthesis device located in the reaction barrel. The microwave synthesis device is provided with activation switch located on the outer wall of the reaction barrel. The microwave synthesis reaction device is microwave generator used for continuous microwave synthesis of dispersed solution.