▎ 摘　　要

NOVELTY - Three-dimensional graphene/black titanium dioxide composite material comprises three-dimensional graphene and a nano black titanium dioxide that is supported on the three-dimensional graphene. USE - Three-dimensional graphene/black titanium dioxide composite material used in photocatalysis, especially in the application of full solar spectrum enhanced photocatalysis and for preparing porous photocatalytic material (all claimed). ADVANTAGE - The three-dimensional graphene/black titanium dioxide composite material has three-dimensional graphene that is used for key photo-carrier separation and conduction network to realize the high-efficiency adsorption of the pollutants and the in-situ degradation of the visible light-responsive black titanium dioxide. It has outstanding efficacy, and significantly improved photocatalytic efficiency based on full solar light spectrum driving. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for preparing three-dimensional graphene/black titanium dioxide composite material, which involves performing hydrothermal reaction between three-dimensional graphene and black titanium dioxide at 100-220 degrees C for 1-8 hours to prepare the composite material, and then carbonizing to obtain the required product; and (2) a porous photocatalytic material which comprises three-dimensional graphene/black titanium dioxide composite material and porous substrate and is supported on the porous substrate.