▎ 摘　　要

NOVELTY - Preparing modified graphene composite material involves dispersing graphene oxide in anhydrous ethanol and uniformly dispersing using ultrasonic waves, slowly adding tetrabutyl titanate under the condition of stirring, transferring the mixture to a polytetrafluoroethylene lined tank and charging it into a stainless steel reaction vessel for hydrothermal reaction, taking out the hydrothermal reaction product, first washing with ethanol, washing with deionized water and drying in a vacuum oven to obtain desired product. USE - Method for preparing modified graphene composite material. ADVANTAGE - The method enbales to prepare modified graphene composite material whch has excellent photo-catalytic effect.