▎ 摘　　要

NOVELTY - Preparing nitrogen-doped titanium dioxide particles supported graphene-foam nickel film electrode comprises (a) dissolving tetrabutyl titanate in absolute ethanol to form a mixed solution, and titrating the mixed solution with aqueous acetic acid and ethylenediamine to prepare sol-A, where the volume ratio of tetrabutyl titanate to absolute ethanol is 8 ml:40 ml, and the volume ratio of acetic acid and water is 6 ml:12 ml, (b) taking graphite foil as anode and foamed nickel as cathode, and the electrolyte is ammonium sulfate and aqueous ammonia, stripping the graphene and assembling at a voltage of 10 V to prepare graphene-nickel film B, where the ratio of ammonium sulfate to aqueous ammonia is 0.1 mM:30 ml, (c) dipping and pulling film-B in sol A multiple times to obtain film-C, and (d) calcining the film-C at 500 degrees C under nitrogen in a muffle furnace to obtain N-titanium oxide/graphene-nickel film, and naturally cooling to room temperature. USE - The graphene-foam nickel film electrode is useful in the field of degradation and removal of printing and dyeing wastewater in water environment. ADVANTAGE - The method can produce synergistic degradation effect on macromolecular organic matter in water under the condition of electrifying and lighting; and is economical.