高效去除重金属的改性聚合物膜研究进展

概述了改性聚合物膜在重金属去除领域的应用及研究进展,介绍了表面改性、共混改性以及支撑层改性等改性方法。分析了改性聚合物膜表面或基体内部的官能团与功能材料对重金属去除效果的影响及主要作用机理。指出:支撑层改性可以有效提高膜基体孔内负载吸附剂的分散性进而提高重金属吸附量,但改性聚合物膜的稳定性有待进一步评估和提升。

Research progresses in modified polymer membrane for effective removal of heavy metals

The application and research progresses in modified polymer membrane for heavy metals removal were summarized,and the modification methods of surface modification,blending modification and support layer modification were introduced. The heavy metal removal effects and major mechanism of functional groups and functional materials on the surface or inside the matrix of the modified polymer membrane were analyzed. It was pointed out that the supporting layer modification could effectively improve the dispersion of adsorbent in the membrane matrix pore and thus increase the heavy metals adsorption amount,but the stability of the modified polymer membrane should be further evaluated and improved.