Composite material, preparation method and application thereof

The invention relates to the technical field of functional materials, in particular to a composite material, a preparation method and application thereof. The preparation method of the Fe3O4-ZIF-8/COFs composite material disclosed by the invention comprises the following steps: carrying out a reaction on a mixture of Fe3O4-ZIF-8, 1,3,5-benzenetricarboxaldehyde, benzidine, an organic solvent and a catalyst. According to the invention, the Fe3O4-ZIF-8/COFs composite material is prepared through an in-situ polymerization method, the method is simple and easy to implement, and the obtained composite material has superparamagnetism and high specific area, can quickly and effectively adsorb a target object, and has good anti-interference capacity. 本发明涉及功能材料技术领域，具体而言，涉及一种复合材料及其制备方法和应用。本发明的Fe3O4-ZIF-8/COFs复合材料的制备方法，包括以下步骤：Fe3O4-ZIF-8、均苯三甲醛、联苯胺、有机溶剂和催化剂的混合物进行反应。本发明通过原位聚合法制备得到Fe3O4-ZIF-8/COFs复合材料，该方法简单易行，得到的复合材料具有超顺磁性和高的比面积，能快速有效地吸附目标物，同时具有较好的抗干扰能力。