▎ 摘　　要

NOVELTY - Preparation of diatomite/graphene-titania composite photocatalyst involves refining diatomite having fine pore structure, and doping graphene and industrially pure tetrabutyl titanate as a titanium source in the fine pore structure. USE - Preparation of diatomite/graphene-titania composite photocatalyst (claimed). ADVANTAGE - The method produces photocatalyst having improved particle and organic matter adsorption efficiency, and excellent lower photocatalytic degradation efficiency. The catalyst can be easily separated from the reaction mixture. The process does not produce pollution, and is suitable for industrial production.