▎ 摘　　要

NOVELTY - A three-dimensional sponge/aminated graphene composite material is prepared by catalytically reacting graphene oxide and ethylenediamine in presence of ammonia water catalyst and grafting amino group onto surface of graphene oxide, then adding sponge having certain pore size in which the pores serve as reaction space into the reaction liquid, loading the graphene oxide on the sponge to form three-dimensional net-like structure, and carrying out staggered growth of graphene oxide three-dimensional net-like structure on the sponge net-like pore structure. USE - Method of preparing three-dimensional sponge/aminated graphene composite material (claimed). ADVANTAGE - The method is simple to operate, has less investment on equipment, low cost of raw materials and high quality of product, and is suitable for large-scale industrial production. The obtained product has good mechanical property and can be processed into various shapes.