▎ 摘　　要

NOVELTY - Preparation of reduced graphene oxide-titanium dioxide composite material comprises preparing reduced graphene oxide dispersion by putting reduced graphene oxide in beaker, adding deionized water, stirring with glass cup, and ultrasonically treating; preparing reduced graphene oxide-titanium dioxide mixed solution sequentially adding acid and titanium tetrachloride solution to reduced graphene oxide dispersion, and ultrasonically reacting; and hydrothermally reacting in tetrafluoroethylene hydrothermal kettle, washing, and drying. USE - The method is for preparing reduced graphene oxide-titanium dioxide composite material used for treatment of organic dye wastewater (claimed). ADVANTAGE - The method is simple and easy to operate. The resulting composite material can completely decompose organic material in dye wastewater.