▎ 摘　　要

NOVELTY - A foamed metal supported graphene-titanium dioxide-silica photocatalytic composite comprises a foamed metal substrate in which microstructure of graphene, titanium dioxide and silica are uniformly adhered to the matrix of the foamed metal substrate, and a graphene-titanium dioxide complex in which titanium dioxide nanoparticles are uniformly bonded to the graphene skeleton. The titanium dioxide is anatase titanium dioxide crystals. USE - Foamed metal supported graphene-titanium dioxide-silica photocatalytic composite (claimed). ADVANTAGE - The foamed metal supported graphene-titanium dioxide-silica photocatalytic composite can be prepared by simple process. The foamed metal as carrier material improves mechanical strength, corrosion resistance and abrasion resistance of the foamed metal supported graphene-titanium dioxide-silica photocatalytic composite. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of foamed metal supported graphene-titanium dioxide-silica photocatalytic composite, which involves dispersing graphene oxide powder and titanium dioxide powder in an ethanol solution, obtaining graphene oxide-titanium dioxide dispersion, adding tetraethyl silicate, performing hydrolysis reaction under acidic condition, obtaining stable graphene oxide-titanium dioxide-silica sol, immersing a clean foamed metal substrate in the stable graphene oxide-titanium dioxide-silica sol and performing UV irradiation. The clean foamed metal substrate is obtained by ultrasonically-cleaning the foamed metal substrate in an ethanol solution and deionized water.