▎ 摘　　要

NOVELTY - A cuprous oxide/graphene oxide visible light catalyst is prepared by taking commercial graphite, potassium permanganate and concentrated sulfuric acid, mixing, reacting, cooling, adding water, stirring, adding hydrogen peroxide, stirring, separating solid, washing solid product, freeze drying to obtain graphene oxide, taking hydrated copper acetate, dissolving in deionized water, adding graphene oxide, stirring, adding sodium hydroxide solution, centrifuging, adding sugar compound solution, stirring, carrying out hydrothermal reaction, taking solid product, washing, and drying. USE - Method for preparing cuprous oxide/graphene oxide visible light catalyst used for organic wastewater treatment (claimed). ADVANTAGE - The catalyst has electronic capture good transmission performance, has reduced cuprous oxide photogenerated electron recombination rate and has high photocatalytic efficiency. DETAILED DESCRIPTION - A cuprous oxide/graphene oxide visible light catalyst is prepared by taking commercial graphite, potassium permanganate and concentrated sulfuric acid, mixing at - 4? to 0 degrees C for 1 hour, reacting for 1-12 hours at 70-120 degrees C, cooling, adding water, stirring, adding hydrogen peroxide, stirring, separating out solid product, washing solid product to pH value of 7, freeze drying to obtain graphene oxide, taking hydrated copper acetate, dissolving in deionized water to prepare 1.0 mol/L solution, adding graphene oxide, stirring, adding sodium hydroxide solution, centrifuging, adding sugar compound solution, stirring, carrying out hydrothermal reaction at 70-110 degrees C for 12 hours, taking solid product, washing, and drying.