Tuning water content in polymer dopes to boost the performance of outer-selective thin-film composite (TFC) hollow fiber membranes for osmotic power generation

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• 作者：Zhen Lei Cheng^a ; Xue Li^b ; Yingnan Feng^a ; Chun Feng Wan^a ; Tai-Shung Chung^a ; ^{chencts@nus.edu.sg}
• 关键词：Pressure retarded osmosis (PRO) ; Thin-film composite (TFC) ; Outer-selective hollow fiber membrane ; Water content in polymer dopes
• 刊名：Journal of Membrane Science
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：524
• 期：Complete
• 页码：97-107
• 全文大小：2813 K
• 卷排序：524

文摘

Morphologies, pore characteristics and mechanical strength of hollow fiber supports. Polyamide layer morphology, transport properties and performance of the resultant outer-selective thin-film composite membranes. High performance PRO membrane made on the substrate spun from the polymer dope with a low water content. Mathematical models predict ~25% performance increase if external concentration polarization is minimized.