▎ 摘　　要

NOVELTY - A nanotitanium dioxide-graphene composite material with 3-dimensional porous structure is prepared by adding 4 mg/ml of graphene oxide solution with titanium dioxide nanoparticles at a ratio of 10:1-1:10 to obtain uniform dispersion; and placing dispersion liquid into reaction kettle, performing hydrothermal reaction for 2-12 hours at 120-200 degrees C, and freezing and drying. USE - Method for manufacturing nanotitanium dioxide-graphene composite material used in manufacturing super capacitor or for use in environment pollution treatment (claimed). ADVANTAGE - The method is simple and easy to operate, and is suitable for large scale production, and the product has large specific surface area.