▎ 摘　　要

NOVELTY - A reduced graphene oxide-polyurethane double-sponge adsorption film comprises reduced graphene oxide sponge material uniformly filled in pores of the polyurethane hot pressing sponge film and physically combined with the polyurethane hot pressing sponge film. USE - Reduced graphene oxide-polyurethane double-sponge adsorption film used for adsorbing pollutants in water. ADVANTAGE - The adsorption film has excellent adsorption performance, and can be reused. The removal of pollutants in water using the adsorption film is highly efficient. The adsorption film preparation method is simple and economical. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the reduced graphene oxide-polyurethane double-sponge adsorption film, which involves adding polyurethane sponge into a dispersion liquid of graphene oxide, introducing graphene oxide into the pores of polyurethane sponge under the ultrasonic condition to obtain graphene oxide-polyurethane sponge dispersion liquid, freeze-drying to obtain graphene oxide-polyurethane double-sponge composite, hot pressing, and reducing.