Preparation method and antibacterial application of CaO/ZnO composite nano material

The invention belongs to the technical field of nano material preparation, and relates to a preparation method and application of a CaO/ZnO composite nano material. Antibacterial powder contains 85% of calcium oxide and 15% of ZnO nano antibacterial active components by weight ZnO is firmly adsorbed on the surface of a CaO carrier, and the particle size of the ZnO is 100 nanometers. The preparation method of the composite nano material comprises the following steps of: soaking oyster shells in a solution of Zn (NO3) 2 6H2O, filtering, drying and calcining at high temperature to obtain the CaO-ZnO composite nano material. The preparation method has the advantages of wide raw material source, low cost, simple preparation process and good antibacterial activity of the material; and the prepared CaO/ZnO composite nano material can be used as an antibacterial agent to be added into plastic products, paints, sanitary products and coatings. 本发明属于纳米材料制备技术领域，涉及一种具有抑菌活性的CaO-ZnO复合纳米材料的制备方法及其应用，该抗菌粉体中含85wt%的氧化钙和15wt%的ZnO