Two-dimensional covalent organic frameworks (COF-LZU1) based mixed matrix membranes for pervaporation

被引：44
作者：
Wu, Guorong [1 ,3 ]
Lu, Xiaoyu [1 ]
Li, Yongliang [4 ]
Jia, Zhiqian [1 ]
Cao, Xingzhong [2 ]
Wang, Baoyi [2 ]
Zhang, Peng [2 ]
机构：
[1] Beijing Normal Univ, Coll Chem, Lab Membrane Sci & Technol, Beijing 100875, Peoples R China
[2] Chinese Acad Sci, Inst High Energy Phys, Multidiscipline Res Div, Beijing 100049, Peoples R China
[3] East China Univ Technol, Sch Chem Biol & Mat Sci, Nanchang 330013, Jiangxi, Peoples R China
[4] Beijing Normal Univ, Analyt & Testing Ctr, Beijing 100875, Peoples R China
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2020年 / 241卷
基金：
中国国家自然科学基金;
关键词：
COF-LZU1; Pervaporation; N-butanol; Mixed matrix membranes; AQUEOUS-SOLUTIONS; WATER; ETHANOL; PERFORMANCE; SEPARATION; RECOVERY; BUTANOL; ABE;
D O I：
10.1016/j.seppur.2019.116406
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Two-dimensional covalent organic frameworks (COF-LZU1) based PDMS mixed matrix membranes (MMMs) were fabricated and employed for pervaporation of 3.6 wt% n-butanol solution. The effects of COF-LZU1 loading on membrane properties (hydrophobicity, swelling degree and partition coefficient) and PV performance, as well as the influences of membrane thickness and feed temperature, were investigated. It was found that, after incorporating COF-LZU1, the hydrophobicity and n-butanol partition coefficient of MMMs were enhanced, and anti-trade-off effects between permeation flux and separation factor were demonstrated successfully. The PV performance could be further optimized by reducing the membranes thickness and increasing the feed temperature. The permeation flux and separation factor of MMMs attained 2694 g m(-2) h(-1) and 38.7 respectively, demonstrating great potential in industrial application.
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页数：7
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