A novel sulfonated reverse osmosis membrane for seawater desalination: Experimental and molecular dynamics studies
A novel sulfonated reverse osmosis membrane for seawater desalination: Experimental and molecular dynamics studies
复制标题
用于海水淡化的新型磺化反渗透膜：实验和分子动力学研究
DOI：
10.1016/j.memsci.2018.01.023
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发表时间：
2018-03
影响因子：
9.5
通讯作者：
Wang Lianjun
中科院分区：
文献类型：
--
作者：
Yao Yujian;Li Meng;Cao Xingzhong;Zhang Peng;Zhang Wen;Zheng Junfeng;Zhang Xuan;Wang Lianjun
合成了一种新型磺化二胺单体 4,4′-((1,4-亚苯基双(亚甲基))双(氮杂二基))二苯磺酸 (PMABSA)，并将其用作唯一的水反应物，用均苯三甲酰氯 (TMC) 代替传统的间苯二胺 (MPD) 制造新型反渗透 (RO) 膜。采用响应面法（RSM），评估纯水渗透率（PWP）和对 NaCl 的脱盐率（R），优化 PMABSA/TMC 膜的分离性能，在 1.55 MPa 压力下，PWP 为 1.18 ± 0.03 L m−2h−1bar−1，R 为 98.2 ± 0.4%。由于分子中心的刚性苯环在界面聚合（IP）过程中可能具有阻断作用，因此所得阻挡层不太致密且厚度薄。分子动力学 (MD) 模拟和正电子湮没光谱 (PAS) 都揭示了磺化聚酰胺基质中产生了足够的自由体积。尽管水渗透率略低，但在模型海水分离测试中，与商用 SW30HR（陶氏化学）相比，PMABSA/TMC 膜对所有离子都表现出优异的截留能力。总体而言，所有结果都表明新型膜作为海水淡化非 MPD RO 膜的新选择具有巨大潜力。
A new sulfonated diamine monomer, 4,4′-((1,4-phenylenebis(methylene))bis(azanediyl))dibenzenesulfonic acid (PMABSA) was synthesized and used as the sole aqueous reactant to fabricate a novel reverse osmosis (RO) membrane with trimesoyl chloride (TMC), in place of conventionalm-phenylene diamine (MPD). The separation performance of the PMABSA/TMC membrane was optimized by the response surface method (RSM) by means of evaluating the pure water permeability (PWP) and salt rejection (R) to NaCl, and optimal results of PWP of 1.18 ± 0.03 L m−2h−1bar−1, and R of 98.2 ± 0.4%, respectively, were achieved at 1.55 MPa. Owing to the rigid benzene ring in the center of the molecule, which may have a blocking effect during the interfacial polymerization (IP) process, the resulting barrier layer was less compact and had low thickness. Both molecular dynamics (MD) simulation and positron annihilation spectroscopy (PAS) revealed the creation of sufficient free volumes in the sulfonated polyamide matrix. Regardless of the slightly lower water permeation, the PMABSA/TMC membrane exhibited a superior rejection ability to all the ions compared to that of commercial SW30HR (Dow Chemical) in a model seawater separating test. Overall, all the results indicated the great potential of the novel membrane as a new choice of non-MPD RO membrane for seawater desalination.
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影响因子：
9.5
作者：
Hyung, Hoon;Kim, Jae-Hong
通讯作者：
Kim, Jae-Hong
影响因子：
9.5
作者：
Ghosh, Asim K.;Jeong, Byeong-Heon;Hoek, Eric M. V.
通讯作者：
Hoek, Eric M. V.
响应面法优化聚二甲基硅氧烷（PDMS）/陶瓷复合渗透汽化膜的制备条件
影响因子：
9.5
作者：
Wei Wang;Xiangli Fenjuan;Jin Wanqin;Chen Yiwei;Xu Nanping
通讯作者：
Xu Nanping
影响因子：
9.5
作者：
Jin, Ying;Su, Zhaohui
通讯作者：
Su, Zhaohui
DOI：
10.1016/j.memsci.2010.09.015
发表时间：
2010-12
期刊：
Fuel and Energy Abstracts
影响因子：
--
作者：
Beibei Tang;Chenglong Zou;Peiyi Wu
通讯作者：
Beibei Tang;Chenglong Zou;Peiyi Wu