Preparation method of porous polyion liquid

The invention provides a preparation method of a porous polyion liquid, which comprises the following step: under the action of tetraalkyl ammonium hydroxide, cationic polyion liquid is self-assembled in a solvent to form the porous polyion liquid. Compared with the prior art, the porous polyion liquid with different pore sizes can be prepared by regulating and controlling the concentration of the cationic polyion liquid in the system, and the method has the characteristics that the operation is simple, and the pore size is controllable and easy to regulate; therefore, the pore structure of the polyion liquid can be flexibly, quickly and simply optimized according to the size of pollutant molecules, and the method is a low-cost and green method for improving the adsorption performance of the porous polyion liquid. 本发明提供一种多孔聚离子液体的制备方法，该方法包括：在四烷基氢氧化铵的作用下，阳离子型聚离子液体在溶剂中自组装形成多孔聚离子液体。与现有技术相比，本发明可通过调控体系中阳离子型聚离子液体的浓度制备出不同孔隙大小的多孔聚离子液体，具有操作简单、孔隙大小可控易调节的特点，从而可以灵活地根据污染物分子的大小对聚离子液体的孔隙结构进行快速简捷地优化，是一种低成本、绿色的提升多孔聚离子液体吸附性能的方法