▎ 摘　　要

NOVELTY - Preparing graphene oxide-titanium dioxide nano tube composite material comprises (i) preparing graphene oxide solution; and (ii) adding graphene oxide solution to sodium hydroxide and titanium dioxide powder, stirring uniformly, reacting and heating for 40-80 hours at 130-150 degrees C, filtering, washing the solid until the washing liquid is neutral, then filtering to obtain powder, placing powder in 0.1-0.3 mol/l hydrochloric acid, allowing to stand for 8-12 hours, and filtering. USE - The method is useful for preparing graphene oxide-titanium dioxide nanotube composite material. ADVANTAGE - The method solves the problem of small contact area of graphene and titanium dioxide. The composite material has high photo-oxidation performance and is suitable for photo-catalytic reaction.