▎ 摘　　要

NOVELTY - A porous graphene load titanium dioxide composite material is prepared by taking titanium source, adding sulfuric acid solution, mixing, adding graphene quantum dot suspension, stirring, heating, adding concentrated ammonia water solution, adjusting pH value, aging, washing, drying, preparing graphene dispersing solution using water, acetone or dimethyl sulfoxide as solvent, taking graphene dispersing solution, adding prepared raw material, stirring, heating, cooling, centrifuging, washing, and drying. USE - Method for preparing porous graphene load titanium dioxide composite material (claimed). ADVANTAGE - The product has excellent photocatalysis degradation performance suitable for sewage treatment and environmental protection field. DETAILED DESCRIPTION - A porous graphene load titanium dioxide composite material is prepared by taking 0.1-0.3 mol/L titanium source, adding 1 mol/L sulfuric acid solution, mixing, adding graphene quantum dot suspension, stirring for 10-30 minutes, heating at 100-110 degrees C for 2-4 hours, adding concentrated ammonia water solution, adjusting pH value to 7, aging, washing, drying, preparing 0.2-0.8 mg/mL graphene dispersing solution using water, acetone or dimethyl sulfoxide as solvent, taking 80-100 mL graphene dispersing solution, adding prepared raw material, stirring for 10-30 minutes, heating at 80-120 degrees C for 15-30 minutes, cooling, centrifuging, washing, and drying.