▎ 摘　　要

NOVELTY - A graphene-rare earth gadolinium co-doped titanium/tin(IV) oxide-antimony (Ti/SnO2-Sb) composite electrode used for electrocatalysis degradation of trichlorophenol waste water, is prepared by grinding titanium electrode by sand paper, alkali washing using sodium hydroxide, etching using oxalic acid to obtain pre-processed electrode, adding stannic chloride and antimony trichloride to ethylene glycol solution of citric acid, stirring at constant temperature, adding graphene and soluble rare earth gadolinium salt for ultrasonic uniform mixing to obtain precursor solution, drying pre-processed electrode, uniformly coating electrode in precursor solution, putting into oven to dry, sintering in muffle furnace and cooling. USE - The method is used for preparing graphene-rare earth gadolinium co-doped titanium/tin(IV) oxide-antimony composite electrode for electrocatalysis degradation of trichlorophenol waste water (claimed). ADVANTAGE - The electrode has high stability and good electrocatalytic performance, and greatly improves service life by doping modification of graphene and rare earth gadolinium.