▎ 摘　　要

NOVELTY - Photocatalytic copper oxide (CuO) composite material comprises graphene oxide or carboxylated multi-wall carbon nanotube as carrier material, and CuO as load material. The mass ratio of carrier material and load material is 2:1-8. The CuO nanoparticles are attached on the surface of the graphene oxide or carboxylated multi-wall carbon nanotube and are uniformly distributed. The size of the single particle of CuO nanoparticle is 20-80 nm, and the size of the aggregate is 150-600 nm. The graphene oxide is sheet-shaped, where the sheet diameter is 500 nm-5 mu m, the thickness of the single layer is not greater than 2 nm, the length of the carboxylated multi-wall carbon nanotube is 10-30 mu m, the diameter of the tube is 20-30 nm, and the content of the carboxy is more than 1.2 wt.%. USE - Used as photocatalytic CuO composite material. ADVANTAGE - The photocatalytic CuO composite material has stable composite structure, high light absorption rate, high thermal conductivity, high photocatalytic efficiency, and simple preparation, and is suitable for high efficiency batchwise preparation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for highly-efficient preparation of photocatalytic CuO composite material comprising according to the mass ratio of carrier material and load material copper oxide of 2:1-8, preparing carrier material and water-soluble copper salt, where the amount of copper element in the water-soluble copper salt is the same as the copper oxide; dispersing the graphene oxide or carboxylated multi-wall carbon nanotube in water to obtain mixed solution A, and mixing the copper acetate, water, sodium hydroxide (NaOH) and hexadecyltrimethylammonium bromide to obtain mixed solution B; dropping the mixed solution A into the mixture B, and heating to obtain the precursor solution; and microwave water bath heating the precursor solution in the reaction kettle, washing, filtering, and collecting the solid product i.e. photocatalytic CuO composite material with high light absorption rate.