Preparation method of ammonium tetrathiomolybdate modified metal organic framework composite material

The invention provides a preparation method of an ammonium tetrathiomolybdate modified metal organic framework composite material, which comprises the following steps: adding dimethylimidazole into deionized water, stirring, adding an ammonium tetrathiomolybdate solution, stirring for 30 minutes, adding a Co (NO3) 2 solution, stirring for 1 hour in a dark place at room temperature, centrifuging, washing a colloidal product with water, and freeze-drying to obtain the ammonium tetrathiomolybdate modified metal organic framework composite material. The ammonium tetrathiomolybdate modified metal organic framework composite material is obtained. The prepared ammonium tetrathiomolybdate modified metal organic framework composite material has excellent adsorption performance on chromium ions, and can be used for adsorbing and removing Cr (VI) in sewage treatment. 本发明提供了一种四硫代钼酸铵改性金属有机骨架材料复合材料的制备方法，该方法为：向去离子水中加入二甲基咪唑，搅拌后，加入四硫代钼酸铵溶液，搅拌30min后，加入Co(NO3)2溶液，在室温的条件下避光搅拌1h后离心，将胶体产物用水洗涤后，冷冻干燥后，得到四硫代钼酸铵改性金属有机骨架材料复合材料。本发明制备的四硫