周挺进;黄娟;陈利金;陈日耀;陈晓;郑曦;陈震;

• 1:福建师范大学环境科学与工程学院
• 2:福建师范大学化学化工学院

摘要(Abstract)：

分别用Fe3+、Cr3+和Ca2+对羧甲基纤维素钠(CMC)-聚乙烯醇(PVA)阳膜层进行改性,制备了Me-CMC-PVA/CS-PVA双极膜(双极膜简记为BPM,CS为壳聚糖,Me=Fe3+,Cr3+或Ca2+).研究表明,Fe-CMC-PVA阳膜亲水性强于以Cr3+或Ca2+改性的CMC-PVA阳膜,相应地,Fe-CMC-PVA/CS-PVABPM中间界面层水解离能力也较强,膜IR降和槽电压也较低.此外,Fe-CMC-PVA/CS-PVA BPM的机械性能、热稳定性也较好,其在水和酸、碱溶液中的溶胀度也较低,有效地提高了双极膜的性能.

关键词(KeyWords)： 双极膜;金属离子;水解离;改性

Abstract:

Keywords:

基金项目(Foundation): 福建省自然科学基金资助项目(2010J01028);; 福建省科技厅重点资助项目(2012H0019)

作者(Authors): 周挺进;黄娟;陈利金;陈日耀;陈晓;郑曦;陈震;

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