▎ 摘　　要

NOVELTY - Preparing a nickel/titanium dioxide-graphene oxide composite comprises: preparing a nickel-doped titanium dioxide catalyst via co-precipitation using sodium hydroxide as a precipitating agent; and preparing the nickel/titanium dioxide-graphene oxide composite. USE - The method is useful for preparing a nickel/titanium dioxide-graphene oxide composite. ADVANTAGE - The method utilizes: the graphene-oxide/titanium dioxide that exhibits enhanced self-cleaning coatings for surfaces including cement, metal, glass and wood; and the active coatings with improved photocatalytic activity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) applying a nickel/titanium dioxide-graphene oxide coating to a substrate comprising treating the substrate using a plasma jet, amino-salinizing the substrate and depositing the nickel/titanium dioxide-graphene oxide coating to the substrate; and (2) a active surface, comprising a substrate having a first organic compound accumulation rate, a ball milled material including graphene oxide and titanium dioxide, the ball milled material disposed to the substrate and configured to form the active surface having a second organic compound accumulation rate less than the first organic compound accumulation rate.