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磺化聚苯醚/介孔氧化硅杂化阳离子交换膜的制备及性能研究

作者：李雪云，苗继斌，夏茹，陈鹏，杨斌，曹明，苏丽芬，钱家盛

单位：安徽大学化学化工学院，安徽省绿色高分子材料重点实验室，中国，合肥 230601

关键词：介孔氧化硅；阳离子交换膜；扩散渗析

DOI号：

分类号： TQ028.8, O631

出版年,卷(期):页码： 2017,37(1):69-74

摘要：

利用溶胶-凝胶反应制备了带有氨基的介孔氧化硅，通过溶液共混的方法将其与磺化聚苯醚（SPPO）溶液混合制备出有机-无机杂化阳离子交换膜。利用NaOH/Na2WO4体系的扩散渗析回收废碱过程对膜的性能进行了测试，结果显示介孔氧化硅的引入可以在一定程度上解决膜分离过程中的“trade-off”效应：杂化膜的离子通量高于纯的SPPO膜，分离因子也保持在较高的水准。通过对传质机理的研究，我们认为介孔氧化硅的孔结构及其表面的-NH2对离子传递有重要的促进作用。

Amino-modified mesoporous silica (AMMS) was successfully prepared by using sol-gel reaction and was then blended with SPPO solution to prepare organic-inorganic hybrid membranes. The performance of the membranes were investigated in NaOH/Na2WO4 model system for alkali recovery via diffusion dialysis (DD), and the results showed that the introduction of mesoporous silica could solve the "trade-off" effect to a certain extent in the membrane separation process: the ion flux of the hybrid membrane was higher than that of the pure SPPO membrane, and the separation factor was also maintained at a higher level. After exploring the mass transfer mechanism, it was believed that the mesopores and -NH2 on the surface of mesoporous silica played an important role in ion transport.

基金项目：

基金项目：国家自然科学基金（51273001），安徽大学青年科学研究基金

作者简介：

第一作者：李雪云（1991-），女，安徽阜阳人，硕士研究生，从事有机-无机杂化膜研究，* **通讯作者，邮箱：qianjsh@ahu.edu.cn, lingxiaoyu1003@163.com,

参考文献：

[1] Miao J B, Yao L Z, Yang Z J, et al. Sulfonated poly (2, 6-dimethyl-1, 4-phenyleneoxide)/nano silica hybrid membranes for alkali recovery via diffusion dialysis [J]. Separation and Purification Technology, 2015, 141: 307-313
[2]Wu H, Tang B, Wu P. Novel Hollow Mesoporous Silica Spheres/Polymer Hybrid Membrane for Ultrafiltration [J]. Journal of Physical Chemistry C, 2011, 116 (3): 2246-2252
[3] Li Q, Li Z, Yu H, et al. Effects of ordered mesoporous silica on the performances of composite nanofiltration membrane [J]. Desalination, 2013, 327 (16): 24-31
[4] Saad A, Bakas I, Piquemal J Y, et al. Mesoporous silica/polyacrylamide composite: preparation by UV-graft photopolymerization, characterization and use as Hg II adsorbent [J]. Applied Surface Science, 2016, 367: 181-189
[5] Zhao Y, Yang H, Wu H, et al. Enhanced proton conductivity of the hybrid membranes by regulating the proton conducting groups anchored on the mesoporous silica [J]. Journal of Power Sources, 2014, 270 (3): 292-303
[6] Lei G, Yao H, Dan L, et al. New organic–inorganic hybrid membranes based on sulfonated polyimide/aminopropyltriethoxysilane doping with sulfonated mesoporous silica for direct methanol fuel cells [J]. Journal of Applied Polymer Science, 2012, 123 (5): 3164-3172
[7] Margolese D, Melero J A, Christiansen S C, et al. Direct syntheses of ordered SBA-15 mesoporous silica containing sulfonic acid groups [J]. Chemistry of Materials, 2000, 12 (8): 2448-2459
[8] Liu J, Bai S Y, Zhong H, et al. Tunable assembly of organosilica hollow nanospheres [J]. Journal of Physical Chemistry C, 2010, 114 (2): 953-961
[9] Miao J B, Li X Y, Yang Z J, et al. Hybrid membranes from sulphonated poly (2, 6-dimethyl-1,4-phenylene oxide) and sulphonated nano silica for alkali recovery [J]. Journal of Membrane Science, 2016, 498:201-207
[10]姚兰忠. 扩散渗析用PVA/nano-Ti02杂化膜的制备及性能研究[D]. 安徽大学, 2015
[11]郝建文. PVA基杂化阳离子交换膜的制备及其碱回收性能[D]. 中国科学技术大学, 2013
[12]赵东元. 有序介孔分子筛材料[M]. 高等教育出版社, 2013
[13] Xiao X, Wu C, Peng C, et al. Cation exchange hybrid membranes from SPPO and multi-alkoxy silicon copolymer: Preparation, properties and diffusion dialysis performances for sodium hydroxide recovery [J]. Fuel & Energy Abstracts, 2011, 379 (1): 112-120
[14] Geng L, He Y, Liu D, et al. Facile in situ template synthesis of sulfonated polyimide/mesoporous silica hybrid proton exchange membrane for direct methanol fuel cells [J]. Microporous & Mesoporous Materials, 2012, 148:8-14
[15]李丽坤, 魏小兰, 章浩. 介孔材料离子导电性的研究[J]. 化学进展, 2009，21 (4): 765-770
[16] Dan L, Lei G, Fu Y, et al. Novel nanocomposite membranes based on sulfonated mesoporous silica nanoparticles modified sulfonated polyimides for direct methanol fuel cells [J]. Journal of Membrane Science, 2011, 366 (1-2): 251-257

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