▎ 摘　　要

NOVELTY - Preparing sulfonated titanium dioxide/graphene oxide/silver nano-particle composite film, comprises (i) mixing uniformly graphene oxide, ethyl sulfonic acid sodium and sodium hydroxide in water, adding concentrated nitric acid and reacting, (2) mixing aqueous solution of sulfonated graphene oxide with silver nitrate aqueous solution and stirring and adding ascorbic acid, (iii) preparing titanium dioxide nanometer cluster and removing the metal net, (iv) dispersing silver nano particles/sulfonated graphene oxide composite material in water and vacuum deposition and vacuum drying. USE - The composite film is used in treating wastewater, separating emulsion, and degrading organic dye (claimed). DETAILED DESCRIPTION - Preparing sulfonated titanium dioxide/graphene oxide/silver nano-particle composite film, comprises (i) mixing uniformly graphene oxide, ethyl sulfonic acid sodium and sodium hydroxide in water, adding concentrated nitric acid and reacting to obtain sulfonated graphene oxide, (2) mixing aqueous solution of sulfonated graphene oxide with silver nitrate aqueous solution and stirring, adding ascorbic acid and continuing to stir to obtain the silver nano particles/sulfonated graphene oxide composite material, (iii) preparing titanium dioxide nanometer cluster on the metal net using tetrabutyl titanate, glycerol and ethanol as raw material to obtain the titanium dioxide nano-clusters of metal net, adding titanium trichloride, saturated sodium chloride aqueous solution and mixed solution of urea to the the reaction and removing the metal net to obtain titanium dioxide nano-rod array, (iv) dispersing silver nano particles/sulfonated graphene oxide composite material in water and vacuum deposition on the titanium dioxide nano-rod array and drying using vacuum.