▎ 摘　　要

NOVELTY - Preparing titanium dioxide/graphene composite material comprises dispersing the graphene oxide powder in water to obtain graphene oxide dispersion, dispersing the nano-titanium dioxide in water to obtain titanium dioxide dispersion liquid, providing a substrate, coating the graphene oxide dispersion liquid and the titanium dioxide dispersion liquid on the substrate, and drying to obtain the composite material precursor, using ultraviolet light to irradiate the composite material precursor, the graphene oxide in the composite material precursor is reduced to reduced graphene oxide. USE - The method is useful for preparing titanium dioxide/graphene composite material. ADVANTAGE - The method reduces the graphene oxide in the composite material precursor to reduced graphene oxide.