▎ 摘　　要

NOVELTY - Preparation of graphene oxide-titanium dioxide composite photocatalyst aqueous solution comprises preparing titanium hydroxide solid, ultrasonically dispersing titanium hydroxide solid and deionized water, obtaining titanium hydroxide dispersion, adding hydrogen peroxide solution and graphene oxide, reacting, cooling and obtaining the product. The graphene oxide is added into reaction system at a final concentration of 0.1-200 mg/L. The mol ratio of hydrogen peroxide and titanium hydroxide solid is 1:0.5-1.5. USE - Preparation of graphene oxide-titanium dioxide composite photocatalyst aqueous solution. ADVANTAGE - The method provides graphene oxide-titanium dioxide composite photocatalyst aqueous solution, which can be directly coated, forms a stable coating, which has very strong adhesion, after drying at room temperature, does not erode the base material, and does not pollute the environment.