Facile Synthesis of Dual-Layer Organic Solvent Nanofiltration (OSN) Hollow Fiber Membranes

详细信息    查看全文

• 作者：Shi-Peng Sun ; Sui-Yung Chan ; Weihong Xing ; Yong Wang ; Tai-Shung Chung
• 刊名：ACS Sustainable Chemistry & Engineering
• 出版年：2015
• 出版时间：December 7, 2015
• 年：2015
• 卷：3
• 期：12
• 页码：3019-3023
• 全文大小：329K
• ISSN：2168-0485

文摘

A dual-layer organic solvent nanofiltration (OSN) hollow fiber membrane was prepared by a single-step coextrusion process with polybenzimidazole as the outer selective layer and hyperbranched polyethylenimine cross-linked polyimide as the inner support layer. The OSN membrane shows a rejection of >99% against methylene blue (MW: 319.85 g mol^鈥?) with good solvent fluxes in water, methanol, and acetonitrile. The newly invented fabrication technology may provide simple, cost-effective, scalable, and high-performance OSN membranes for organic solvent recovery.