▎ 摘　　要

NOVELTY - Preparing double quantum dot modified flower-type three-dimensional graphene comprises preparing three-dimensional graphene on the surface of foamed nickel, preparing electrodeposition precursor solution containing gold, preparing gold-titanium dioxide-3DGFs composite by electrochemical deposition, placing three-dimensional graphene is in precursor solution as working electrode to deposit titanium dioxide and noble metal gold double quantum dots, forming flower-type three-dimensional graphene during electrochemical deposition, and distributing gold and titanium dioxide double quantum dots on the surface. USE - The method is useful for preparing double quantum dot modified flower-type three-dimensional graphene. ADVANTAGE - The has low recombination rate, high photoelectrocatalytic activity and high utilization rate of sunlight.