Preparation method of zinc oxide-metal organic framework composite antibacterial material

The invention relates to a preparation method of a zinc oxide-metal organic framework composite antibacterial material. Lanthanide-series MOFs which are good in biological property and easy to prepareare adopted as a framework material; the MOFs-Ln is prepared from thiodiacetic acid (TDA) and lanthanide nitrate. Through two-step stripping, the particle sizes and porosity of the MOFs-Ln can be adjusted, so MOFs structures of different sizes are obtained; and then, zinc nitrate, sodium hydroxide and sodium chloride are used for growing ZnO NPs on the surface and in pores of the MOFs-Ln in an in-situ growth mode, so the ZnO NPs@MOFs-Ln material with good antibacterial performance can be obtained. The morphology and particle size of MOFs-Ln can be regulated and controlled by changing the content and reaction time of TDA and lanthanide nitrate and changing a stripping mode, so the subsequent growth size of ZnO NPs is influenced, and the generation of nanoscale ZnO particles with high antibacterial activity is limited; and the material has efficient antibacterial effects.