▎ 摘　　要

NOVELTY - A sheet-shaped nano copper oxide/graphene composite material is hydrothermally prepared by dissolving copper acetate monohydrate into deionized water to obtain solution A, preparing graphene oxide solution using hummers method, dropping into solution A, magnetic force stirring to obtain solution B, dissolving sodium hydroxide solution into deionized water, dropwise adding into solution B, magnetic stirring, transferring into PTFE liner stainless steel high pressure reaction kettle, reacting, naturally cooling, removing upper layer clear liquid, and transferring into beaker. USE - Method for hydrothermal preparing sheet-shaped nano copper oxide/graphene composite material (claimed). ADVANTAGE - The material has good crystallinity, high degree and micro-topography sheet-shaped character, and promotes reaction speed of photocatalytic reaction. DETAILED DESCRIPTION - A sheet-shaped nano copper oxide/graphene composite material is hydrothermally prepared by dissolving copper acetate monohydrate into deionized water to obtain solution A, preparing graphene oxide solution using hummers method, dropping into solution A, magnetic force stirring for 8 hours to obtain solution B, dissolving sodium hydroxide solution into deionized water, dropwise adding into solution B, magnetic stirring for 1 hour to obtain solution C, transferring into PTFE liner stainless steel high pressure reaction kettle, reacting at 100 degrees C for 10 hours to obtain reaction mixture product D, naturally cooling to room temperature, removing upper layer clear liquid, transferring reaction mixture product D into beaker, cleaning supernatant using deionized water, detecting using pH meter, standing, removing supernatant to obtain precipitate containing solid product E, putting into vacuum drying box, and drying at 60 degrees C for 24 hours.