采用哌嗪单体进行界面聚合制备的聚酰胺复合纳滤膜具有优异的截留性能和化学稳定性,越来越广泛地应用于水处理领域。为改善哌嗪基聚酰胺复合纳滤膜渗透通量较低及“trade-off”效应等问题,研究人员采用各种方法对其进行改性。综述了近年来哌嗪基聚酰胺复合纳滤膜的改性研究进展,从哌嗪水相添加剂调控、界面聚合方法改进、膜的后处理以及构建中间层四个方面介绍了哌嗪基聚酰胺复合纳滤膜的改性效果,并展望了其未来的发展方向。
Polyamide (PA) composite nanofiltration membranes prepared via interfacial polymerization using piperazine monomer have been widely used in water treatment and other fields due to their excellent rejection performance and chemical stability.To address issues of low permeance and “trade-off” effect in the membranes,researchers have used various methods to modify and improve the membrane performance.In this paper,the progress of modification research of piperazine-based PA membranes were reviewed,including regulation of aqueous phase additives,improvement of interfacial polymerization methods,post-treatment and construction of intermediate layers.The future research directions of the piperazine-based PA membranes were prospected.
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基金资助
国家自然科学基金面上项目(22178007,21878003)
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