▎ 摘　　要

NOVELTY - Preparation of reduction-oxidation nitrogen doped graphene/titanium dioxide composite material, involves mixing a graphene oxide dispersion liquid and titanium dioxide, and carrying out annealing treatment of mixture under atmosphere of ammonia gas. USE - Method is useful for preparation of reduction-oxidation nitrogen doped graphene/titanium dioxide composite material, which is useful for photocatalytic degradation of organic dyes (claimed). ADVANTAGE - The method is simple and convenient for large scale production of the catalyst, which has excellent catalytic performance.