| abstract |
The invention discloses a method and application for the controllable preparation of CuO nanomaterials assisted by ultrasonic chemistry and annealing, comprising the following preparation steps: first, pouring an ascorbic acid solution into a soluble metal copper source solution, stirring and mixing the mixed solution, and then adding peroxide Hydrogen, ultrasonic treatment, centrifugation, washing and drying to obtain precursor powder; finally, the precursor powder was annealed at 400 °C for 2 h to obtain black CuO powder. The reactants and the system adopted in the present invention do not pollute the environment, and no harmful pollutants are produced in the preparation process. At the same time, CuO with different morphologies (cubic, pillow and spherical) was prepared by adjusting the proportion of reaction precursors, and the prepared products had the degradation effect on methylene blue. The photocatalytic performance of cubic copper oxide was the best, and it could be Completely degraded, the preparation process involved in the present invention can realize mass production of photocatalytic materials and be devoted to environmental management. |