▎ 摘　　要

NOVELTY - Preparing graphene oxide/polymer sponge three-dimensional structure composite material comprises (1) adding the polymer sponge in a strong acid aqueous solution to remove impurities and skin on the surface of the polymer sponge, and removing the residual strong acid aqueous solution to obtain a polymer sponge with negatively charged surface, (2) soaking the negatively charged polymer sponge in the acid chitosan solution, removing the residual acidic chitosan solution to obtain a positively charged polymer sponge, and (3) soaking the positively charged polymer sponge in the graphene oxide dispersion liquid, and removing the residual graphene oxide dispersion to obtain the first product of the graphene oxide/polymer sponge three-dimensional structure composite material. USE - The method is useful for preparing graphene oxide/polymer sponge three-dimensional structure composite material. ADVANTAGE - The method: is environmentally friendly; and has low energy consumption, short production cycle, and provides graphene oxide/polymer sponge three-dimensional structure composite material, which can be recycled and used. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a graphene oxide/polymer sponge three-dimensional structure composite material.