Preparation and application of phosphorus oxychloride modified UiO-66-NH2 material

The invention discloses preparation and application of a phosphorus oxychloride modified UiO-66-NH2 material, and the method comprises the following steps: firstly, mixing zirconium tetrachloride and 2-aminoterephthalic acid in a solvent N, N-dimethylformamide, placing in a high-pressure reaction kettle, and synthesizing the UiO-66-NH2 material by using a solvothermal method; adding the dried UiO-66-NH2 material into a reaction container, adding an organic solvent acetonitrile into the reaction container, carrying out ultrasonic dispersion uniformly, adding triethylamine, slowly dropwise adding phosphorus oxychloride into the reaction container, carrying out a reaction at room temperature for 4-80 h, preferably 24 h, and washing and drying the product to obtain the phosphorus oxychloride modified UiO-66-NH2 material. The material serves as an adsorption material to be applied to recycling of metal ion titanium. The method is simple in preparation process and mild in reaction condition, and is successfully app