▎ 摘 要
NOVELTY - A nanometer composite visible photocatalyst comprises porous graphene and tin tungsten oxide in which tin oxide and tungsten is deposited on porous graphene sheet layer and 4-6 wt.% porous graphene with thickness of 20-160 nm has specific surface area of 350-450 m2/g, electrical conductivity of 20-60 Sx m-1 at 900 degrees C, strong absorbance of 0.92-1.08 in the area of composite material with wavelength of 400-800 nm, and condition of light irradiation of methyl orange dye degradation rate of 99.9% for 90 minutes. USE - A nanometer composite visible photocatalyst (claimed). ADVANTAGE - Catalytic activity is improved. Porous graphene can be used repeatedly.