▎ 摘　　要

NOVELTY - Preparing cuprous oxide/graphene composite photocatalytic nanomaterial using electron beam irradiation process comprises (a) dissolving soluble copper salt in distilled water to obtain copper salt solution, adding graphene, and oscillating; (b) heating the mixed solution, adjusting pH, and stirring; (c) placing the mixed solution in a sealed reaction kettle, and reacting; (d) placing the resulting mixed solution in sealed container, and subjecting to electron beam irradiation; (e) using ethanol to wash, cleaning with distilled water, separating, repeating for many times; and (f) freeze-drying. USE - The method is useful for preparing cuprous oxide/graphene composite photocatalytic nanomaterial using electron beam irradiation process (claimed). ADVANTAGE - The method: has simple technique and convenient operation; and is suitable for large-scale production. DETAILED DESCRIPTION - Preparing cuprous oxide/graphene composite photocatalytic nanomaterial using electron beam irradiation process comprises (a) weighing soluble copper salt including copper nitrate or copper chloride using an electronic balance, copper nitrate or copper chloride, dissolving in distilled water to obtain 0.05-0.1 mol/l copper salt solution, adding specific amount of graphene, where the concentration ratio of the graphene and copper ion is 1:2:1, placing the mixed solution on a ultrasonic oscillator and oscillating for 5-10 minutes for uniformly mixing; (b) heating the mixed solution to 60-100 degrees C, then adding dilute alkali solution including ammonium hydroxide or ammonium acetate solution, adjusting the mixed solution pH to 5-9, using a magnetic stirrer to stir for 1-30 minutes to make the solution to uniformly mix; (c) placing the uniformly mixed solution in a sealed reaction kettle, reacting at 80-120 degrees C constant temperature for 4-8 hours; (d) placing the resulting mixed solution in a sealed container, then placing in an electron accelerator for subjecting to electron beam irradiation under 2.5 MeV and 40 mA power, where the irradiation dose is 210-350 KGy; (e) using ethanol to wash the irradiated reaction product, then cleaning with distilled water, using a high-speed centrifuge for separation, repeating for many times to remove un-reacted ions; and (f) placing the resulting solid matter in a vacuum freeze-drying box, and drying for 4-8 hours to obtain black powder-shaped cuprous oxide/graphene composite photocatalytic nanomaterial.