Preparation of homogeneous anion exchange membrane based on quaternized PVC for electrodialysis

被引：0
|
作者：
Wang C. [1 ,2 ]
Pan N. [1 ,2 ]
Lu D. [1 ]
Liao J. [1 ,2 ]
Shen J. [1 ,2 ]
Gao C. [1 ,2 ]
机构：
[1] Ocean College, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang
[2] Centre of Membrane Science and Water Technology, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang
来源：
Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 04期
关键词：
1-methylimidazole; Electrodialysis; Homogeneous anion exchange membrane; Polyvinyl chloride;
D O I：
10.11949/j.issn.0438-1157.20181041
中图分类号：
学科分类号：
摘要：
This work presents the preparation of homogeneous anion exchange membrane (AEM) based on quaternized polyvinyl chloride (PVC) via straight forward quaternization of PVC with 1-methylimidazole (N-MI). In particular, the preparation avoids the use of toxic chloromethylation. The optimized AEM PVC-N-MI-5 shows ion-exchange capacity (IEC) and transport number of 2.89 mmol•g-1 and 98.4%, respectively. The water uptake and swelling ratio are 4.24% and 0.21%, lower than the commercial AEM JAM-5 (4.87% and 3.33%). The NaCl removal ratio, current efficiency and energy consumption of the as-prepared AEM were 98.38%, 55.8% and 5.1 kW•h•(kg NaCl)-1, respectively, comparable to commerical JAM-5(93.0%, 55.2% and 4.6 kW•h•(kg NaCl)-1). The cost-effective PVC and relatively good performance are suggestive of the potential electrodialysis application. © All Right Reserved.
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页码：1620 / 1627
页数：7
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