The invention relates to a
photocatalysis material and preparation thereof, and aims to provide a carbon ball-loaded CuO-BiVO4
heterojunction compound photocatalyst. The preparation method comprises the following steps of: putting a
cane solution into a high-pressure kettle for performing
hydrothermal treatment, cooling, centrifugally separating, washing, and
drying to obtain a carbon ball; dissolving a compound containing
bismuth into an acid solution, adding the carbon ball, and stirring; dissolving the compound containing
vanadium into a basic solution, and stirring for full dissolving; mixing the obtained solution, adjusting the pH to 6-7, stirring, transferring into the high-pressure kettle for performing
hydrothermal treatment, cooling, centrifugally separating, washing, and
drying to obtain a carbon ball-loaded BiVO4 catalyst; and mixing a
copper-containing compound solution with a catalyst in a
ceramic crucible, continuously stirring under a water bath condition till the solution is evaporated to
dryness, and baking to obtain a product. The preparation method has the advantages of simple raw materials, wide source, easy and convenient preparation process, easiness in controlling conditions, adjustable process parameters, low
energy consumption, low cost, capability of realizing preparation of a large amount in a short period of time, and
no production of side products which pollute the environment.