▎ 摘　　要

NOVELTY - Tannic acid heterogeneous synergistic electro-Fenton method for catalytic degradation of phenolic organic wastewater involves adding tannic acid and soluble electrolyte to phenolic organic wastewater to obtain a mixed solution (A), and electrolyzing by using a cathode, which adopts a foam electrode modified with a mixture of graphene oxide, ferroferric oxide and graphene oxide loaded ferroferric oxide, and an inert electrode as an anode in an electrolytic manner. USE - Tannic acid heterogeneous synergistic electro-Fenton method for catalytic degradation of phenolic organic wastewater. ADVANTAGE - The method adopts soluble electrolyte, which can provide conductive ions, so that the electrolysis process can proceed smoothly, adopts tannic acid to form tannic acid-iron(III) complex, promotes reduction reaction between ferric ion and ferrous ion, indirectly enhances the ability of ferric ion to activate hydrogen peroxide to produce hydroxy radical, and improves the degradation rate of phenolic organic pollutants by electro-Fenton method.