▎ 摘　　要

NOVELTY - A preparation of graphene oxide/titanium dioxide composite nanomaterial, involves (1) dispersing titanium dioxide nanoparticles in water or a mixed solution of water and ethanol, and dispersing them uniformly to form a titanium dioxide nanoparticle dispersion liquid, (2) adding the charged high molecular polymer aqueous solution to the titanium dioxide nanoparticle dispersion liquid obtained in step (1), and stirring to obtain a titanium dioxide nanoparticle dispersion liquid coated on the surface of the charged polymer macromolecules, (3) dispersing the graphene oxide powder in water or a mixed solution of water and ethanol, and forming a graphene oxide dispersion by ultrasonic dispersion treatment and (4) mixing the dispersion liquid obtained in step (2) and step (3) according to a certain proportion, and stirring. USE - Preparation of graphene oxide/titanium dioxide composite nanomaterial used in photocatalytic degradation or self-cleaning material of organic pollutants (all claimed). ADVANTAGE - The method has simple process, good production process controllability, easy mass production, and the obtained material has significant photocatalytic degradation performance.