▎ 摘　　要

NOVELTY - Method of preparing foam nickel-supported cuprous oxide-graphene oxide photocatalyst involves preparing graphene oxide and ultrasonically dispersing the graphene oxide, soaking the three-dimensional nickel foam in acetone, then treating with hydrochloric acid, ultrasonically washing, soaking the washed three-dimensional nickel foam in the graphene oxide dispersion, air-drying, using the graphene oxide-nickel foam material, the platinum electrode, the calomel electrode and sodium acetate and copper sulfate mixed solution and performing potentiostatic deposition to obtain the product. USE - The method is useful for preparing foam nickel-supported cuprous oxide-graphene oxide photocatalyst in combination with hydrogen peroxide, which is useful for degrading polyacrylamide in wastewater from oil and gas field (claimed). ADVANTAGE - The method is simple, has mild reaction condition, shortens the reaction time and can be recycled. DETAILED DESCRIPTION - Method of preparing foam nickel-supported cuprous oxide-graphene oxide photocatalyst involves (a) preparing graphene oxide and ultrasonically dispersing the graphene oxide, (b) soaking the three-dimensional nickel foam in acetone for 1 hour, then treating with 1 mol/l hydrochloric acid for 10 minutes, ultrasonically washing, soaking the washed three-dimensional nickel foam in the graphene oxide dispersion obtained in step (a) for 4-6 minutes, removing and air-drying to obtain a graphene oxide-nickel foam material, and (c) using the graphene oxide-nickel foam material obtained in step (b) as a working electrode, the platinum electrode as an auxiliary electrode, the calomel electrode as a reference electrode, and 0.1 M sodium acetate and 0.02 M copper sulfate mixed solution as a supporting electrolyte and performing potentiostatic deposition to obtain the product. An INDEPENDENT CLAIM is included for use of the foam nickel-supported cuprous oxide-graphene oxide photocatalyst in combination with hydrogen peroxide for degrading polyacrylamide in wastewater from oil and gas field.