▎ 摘　　要

NOVELTY - Titanium dioxide-bismuth vanadate-graphene ternary composite photocatalytic material is claimed. The composite photocatalytic material is obtained by depositing petal-shaped nano-sized titanium dioxide on the surface of square micron-sized bismuth vanadate and depositing the formed titanium dioxide-bismuth vanadate composite uniformly on graphene surface. USE - The titanium dioxide-bismuth vanadate-graphene ternary composite photocatalytic material is useful for degrading organic pollutants. ADVANTAGE - The photocatalytic material: has large specific surface area; and utilizes visible light which improves photocatalytic activity of titanium dioxide and bismuth vanadate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing titanium dioxide-bismuth vanadate-graphene ternary composite photocatalytic material, comprising (i) adding tetrabutyl titanate to glacial acetic acid until the solution appears milky white, and stirring to obtain precursor solution of synthetic titanium dioxide particles, then carrying out hydrothermal reaction, washing, drying and calcining to obtain petal-shaped titanium dioxide, (ii) dissolving bismuth nitrate pentahydrate in nitric acid solution to obtain solution A and dissolving ammonium metavanadate in sodium hydroxide solution to obtain solution A1 then adding slowly solution A1 into solution A, and stirring magnetically to obtain precursor solution of synthesized bismuth vanadate particles, (iii) adding the titanium dioxide and cetyltrimethylammonium bromide solutions into the precursor solution of synthesized bismuth vanadate particles, stirring and mixing uniformly, then carrying hydrothermal reaction, washing and drying to obtain titanium dioxide-bismuth vanadate composite particles, and (iv) dissolving graphene oxide in anhydrous ethanol solution, dispersing ultrasonically to obtain graphene oxide suspension, then adding titanium dioxide-bismuth vanadate composite particles to graphene oxide suspension, stirring and carrying hydrothermal reaction, washing to neutral and drying to obtain final product.