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Preparation of Fe3O4@SiO2-NH2-SO3H composite microspheres Modified Anion Exchange Membranes

Authors： PENG Guibin1,2, JIN Yali1,2, XU Yanqing1,2, LIAO Junbin1,2, SHEN Jiangnan1,2, GAO Congjie1,

Units： 1 Chemical Engineering college，Zhejiang University of Technology, Hangzhou 310014，Zhejiang, China; 2 Membrane Separation and Water Science & Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China

KeyWords： anion exchange membrane; polydopamine; sulfonated composite microspheres; monovalent selectivity; antifouling property

ClassificationCode：0658. 6+8

year,volume(issue):pagination： 2020,40(5):54-61

Abstract：

A modified anion exchange membrane was prepared by depositing the dopamine (PDA) and composite microspheres (MS) on commercial anion membranes. The effects of the addition of composite microspheres (MS) on the monovalent selectivity and anti-pollution performance were studied. When the modified membranes were used in ED, the permeability selectivity of MS-PDA membrane was 1.46 times higher than that of the PDA membrane. In addition, using sodium dodecyl benzene sulfonate (SDBS) as the pollutant pollution resistance test the anti-pollution performance. The results show that the MS-PDA membrane was still uncontaminated after 300 min, while the conversion time of PDA membrane was only 53 min, suggesting that the introduction of polydopamine (PDA) and sulfonated composite microspheres (MS) with negative charge can obtain anion exchange membrane with good univalent selectivity and anti-pollution performance.

Funds：

国家重点研发计划（No. 2017YFC0403701）；国家自然科学基金项目（No. 21676249）；浙江省自然基金项目（No. LQ19B060004）

AuthorIntro：

彭贵宾（1996—），男，江西萍乡，硕士研究生，从事膜分离、电驱动膜技术研究，E-mail：1471159934@qq.com

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