▎ 摘　　要

NOVELTY - Preparing a high specific surface area graphene-metal oxide composite sponge involves ultrasonically dispersing an aqueous solution of graphene oxide to obtain a uniform dispersion of graphene oxide, and then adding a metal oxide to the dispersion of the above graphene oxide and ultrasonically dispersing to obtain a dispersion of graphene oxide-metal oxide, adding graphene to the above dispersion of graphene oxide-metal oxide, and stirring at room temperature to obtain a uniform dispersion of graphene oxide-metal oxide-graphene. The commercial hydrophilic sponge is fully immersed in the dispersion of graphene oxide-metal oxide-graphene, and after the hydrophilic sponge is adsorbed and saturated, it is taken out and dried. USE - Method for preparing high specific surface area graphene-metal oxide composite sponge. ADVANTAGE - The method enables to prepare high specific surface area graphene-metal oxide composite sponge has high specific surface area, strong adsorption capacity, and has strong catalytic degradation function, and it is simple and easy to operate, convenient to operate, and cost-effective, and very suitable for industrial production.