▎ 摘　　要

NOVELTY - A photocatalytic electrode coupling microbial fuel cell coking wastewater decomposition method involves dissolving bismuth(III) nitrate pentahydrate in 14 wt.% nitric acid, stirring, adding cetrimonium bromide solution according to mass ratio of 1:15, adding graphene oxide, stirring, obtaining solution, dissolving ammonium metavanadate in 2 mol/L sodium hydroxide solution, adding solution according to mol ratio of 1:1, adding 2 mol/L sodium hydroxide solution, adjusting pH value to 6, stirring, reacting for 2 hours at 200 degrees C, cooling, washing, centrifuging, drying, grinding, obtaining powder, dissolving zinc nitrate hexahydrate, indium(III) nitrate pentahydrate and excess tert-amyl alcohol in deionized water, adding powder and deionized water, stirring, reacting for 6 hours at 80 degrees C, cooling, centrifuging, drying, grinding to obtain composite powder, adding silica sol according to mass volume ratio of 1 g:1 mu L, ultrasonicating, coating onto stainless steel net piece, and drying. USE - Photocatalytic electrode coupling microbial fuel cell coking wastewater decomposition method. DETAILED DESCRIPTION - A photocatalytic electrode coupling microbial fuel cell coking wastewater decomposition method comprises dissolving bismuth(III) nitrate pentahydrate in 14 wt.% nitric acid, stirring, adding cetrimonium bromide solution according to mass ratio of 1:15, adding graphene oxide, stirring, obtaining solution, dissolving ammonium metavanadate in 2 mol/L sodium hydroxide solution, adding solution according to mol ratio of 1:1, adding 2 mol/L sodium hydroxide solution, adjusting pH value to 6, stirring, reacting for 2 hours at 200 degrees C, cooling, washing, centrifuging, drying, grinding, obtaining powder, dissolving zinc nitrate hexahydrate, indium(III) nitrate pentahydrate and excess tert-amyl alcohol in deionized water, adding powder and deionized water, stirring, reacting for 6 hours at 80 degrees C, cooling, centrifuging, drying, grinding to obtain composite powder, adding silica sol according to mass volume ratio of 1 g:1 mu L, ultrasonicating, coating onto stainless steel net piece, drying, obtaining photocatalytic electrode coupling microbial fuel cell membrane module, dividing system into two chambers by proton exchange membrane, placing microorganism, inserting carbon rod as cathode, adding coking wastewater with sodium bisulfite to other chamber, using photocatalytic electrode coupling microbial fuel cell membrane module as anode, placing tungsten halogen lamp, forming circuit, and irradiating.