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

被引：91

作者：

Sun, Shi-Peng ^{[1
]}

Chan, Sui-Yung ^{[4
]}

Xing, Weihong ^{[1
]}

Wang, Yong ^{[1
]}

Chung, Tai-Shung ^{[2
,3
]}

机构：

[1] Nanjing Tech Univ, Coll Chem Engn, Natl Engn Res Ctr Special Separat Membrane, Nanjing 210009, Jiangsu, Peoples R China

[2] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 119260, Singapore

[3] Natl Univ Singapore, NUS Environm Res Inst, Singapore 117411, Singapore

[4] Natl Univ Singapore, Dept Pharm, Singapore 117543, Singapore

来源：

ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2015年 / 3卷 / 12期

基金：

中国国家自然科学基金; 新加坡国家研究基金会;

关键词：

Organic solvent nanofiltration (OSN); Hollow fiber membrane; Dual-layer; Polybenzimidazole; Polyimide; Cross-link; POLYBENZIMIDAZOLE; POLYETHYLENIMINE; POLYMERIZATION; PERFORMANCE; FABRICATION; SEPARATION; POLYIMIDE; OSMOSIS; FLUX;

D O I：

10.1021/acssuschemeng.5b01292

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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(-1)) 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.

引用

页码：3019 / 3023

页数：5

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