▎ 摘　　要

NOVELTY - Preparing copper-nitrogen co-doped titanium dioxide/graphene oxide antibacterial agent comprises preparing graphene oxide, preparing nitrogen-doped titanium dioxide particles, preparing copper-nitrogen co-doped titanium dioxide materials, dispersing graphene oxide and surfactant in deionized water, ultrasonically dispersing the mixture, adding the copper-nitrogen co-doped titanium dioxide material into the mixture, adding hydrazine hydrate, stirring and reacting at a constant temperature, cooling to room temperature, centrifugally filtering, washing the precipitate and drying to obtain the finished product. USE - The method is useful for preparing copper-nitrogen co-doped titanium dioxide/graphene oxide antibacterial agent. ADVANTAGE - The antibacterial agent has visible light catalytic antibacterial function and remarkable antibacterial performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for copper-nitrogen co-doped titanium dioxide/graphene oxide antibacterial agent prepared by the above-mentioned method.