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离子交换膜是发展道南渗析去除Cu2+的关键部分.首先由单体聚合制备含有离子交换基团的共聚物,然后以PVA为基体,通过溶胶凝胶法制备了一系列不同共聚物质量分数的PVA基有机-无机杂化阳离子交换膜.在此基础上,评价道南渗析去除Cu2+性能.通过分析渗透通量,系统讨论了共聚物质量分数、接受侧H+浓度对道南渗析去除Cu2+的效果的影响.结果表明,随着共聚物和PVA的质量比从0.25∶4增加到1∶4,Cu2+的渗透通量从4.825×10-10 mol/cm2·s增加到10.01×10-10mol/cm2·s;而接受侧H+浓度的增加对渗透通量的影响呈现先增加后保持基本不变的变化趋势.膜结构和接受侧H+浓度两者协同影响杂化阳离子交换膜道南渗析去除Cu2+性能.“,”The ion exchange membrane is a key factor for developing Donnan dialysis to remove Cu2+.Firstly,the copolymer with ion exchange groups is synthesized by the polymerization of monomers.Then,using polyvinyl alcohol (PVA) as membrane substrate,a series of new-type PVA-based organic-inorganic hybrid membranes with different concentrations of copolymer are prepared with the sol-gel method.On this basis,the performance of this membranes in removing Cu2+ by Donnan dialysis is evaluated.Through analyzing membrane permeation flux,the effects of copolymer content and concentration of H+ in receiver phase on the removal of Cu2+ by Donnan dialysis are discussed in detail.The results show that the permeation flux increases from 4.825× 10-10 mol/cm2· s to 10.01 × 10-10 mol/cm2 ·s with the mass ratio of copolymer to PVA increasing from 6.25％ to 25％.The permeation flux increases firstly,and then remains constant following the augment of concentration of H+ in receiver phase.Consequently,the removing Cu2+ performance of the prepared organic-inorganic hybrid membranes are influenced synergistically by the copolymer structure and the concentration of H+ in receiver phase during Donnan dialysis.