离子交换膜选择透过机理的研究进展

Study on selectivity of ion exchange membrane

综述了近年来国内外离子交换膜选择透过机理的研究进展,指出了研究离子选择透过性的目的,详细介绍了唐南平衡理论,双电层理论和空穴传递双电层理论及各理论优势和存在的问题,探讨了膜微观结构与离子在膜相中传输机制。并讨论了电流密度、膜溶液边界条件以及离子自身性质对膜选择透过性的影响。并且提出选择透过机理的未来研究方向是结合试验进一步优化离子传输机制模型,并采用仿真工具模拟传输过程,提高模型的普适性。这有助于分析离子在膜中传递机理,并为膜制造和应用工艺提供理论指导。

This article summarizes the recent research progress on the selective permeation mechanism of ion exchange membranes at home and abroad,points out the purpose of studying the selective permeability of ions,and details the Tangnan equilibrium theory,electric double layer theory and hole transport electric double layer theory and various theoretical advantages and existing problems have discussed the membrane microstructure and the mechanism of ion transport in the membrane phase.The effects of current density,membrane solution boundary conditions,and ion properties on membrane permeability are discussed.And the future research direction of selecting the transmission mechanism is to further optimize the ion transmission mechanism model in combination with experiments,and use simulation tools to simulate the transmission process to improve the universality of the model.This helps to analyze the mechanism of ion transport in the membrane and provides theoretical guidance for membrane manufacturing and application processes.