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Ionic Liquid Confined in Mesoporous Polymer Membrane with Improved Stability for CO2/N2 Separation
Ming Tan; Jingting Lu; Yang Zhang; Heqing Jiang
2017-09-29
发表期刊NANOMATERIALS
卷号7期号:10页码:299
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摘要Supported ionic liquid membranes (SILMs) have a promising prospect of application in flue gas separation, owing to its high permeability and selectivity of CO2. However, existing SILMs have the disadvantage of poor stability due to the loss of ionic liquid from the large pores of the macroporous support. In this study, a novel SILM with high stability was developed by confining ionic liquid in a mesoporous polymer membrane. First, a mesoporous polymer membrane derived from a soluble, low-molecular-weight phenolic resin precursor was deposited on a porous Al2O3 support, and then 1-ethyl-3-methylimidazolium tetrafluoroborate ([emim][BF4]) was immobilized inside mesopores of phenolic resin, forming the SILM under vacuum. Effects of trans-membrane pressure difference on the SILM separation performance were investigated by measuring the permeances of CO2 and N2. The SILM exhibits a high ideal CO2/N2 selectivity of 40, and an actual selectivity of approximately 25 in a mixed gas (50% CO2 and 50% N2) at a trans-membrane pressure difference of 2.5 bar. Compared to [emim][BF4] supported by polyethersulfone membrane with a pore size of around 0.45 m, the [emim][BF4] confined in a mesoporous polymer membrane exhibits an improved stability, and its separation performance remained stable for 40 h under a trans-membrane pressure difference of 1.5 bar in a mixed gas before the measurement was intentionally stopped.
文章类型Article
关键词Gas Separation Supported Membrane Mesoporous Polymer Ionic Liquid High Stability
WOS标题词Science & Technology - Other Topics ; Materials Science
DOI10.3390/nano7100299
URL查看原文
关键词[WOS]CARBON-DIOXIDE ; PHASE-BEHAVIOR ; MIXED-GAS ; PERMEABILITY ; CO2 ; PERFORMANCE ; SELECTIVITY ; TRANSPORT ; SUPPORTS ; ALUMINA
收录类别SCI
语种英语
所属项目编号21506238 ; 21403267 ; BS2014NJ019 ; 2014GSF117031 ; J15-16-907
资助项目National Natural Science Foundation of China ; Shandong Provincial Natural Science Foundation,China ; project of Science and Technology Development Program in Shandong Province ; State Key Laboratory of Coal Conversion
项目资助者National Natural Science Foundation of China ; Shandong Provincial Natural Science Foundation,China ; project of Science and Technology Development Program in Shandong Province ; State Key Laboratory of Coal Conversion
WOS类目Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号WOS:000414916100017
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9816
专题环境资源化与水回用团队
通讯作者Heqing Jiang
作者单位1.中国科学院青岛生物能源与过程研究所
2.中国科学院大学
3.中国科学院山西煤炭化学研究所
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Ming Tan,Jingting Lu,Yang Zhang,et al. Ionic Liquid Confined in Mesoporous Polymer Membrane with Improved Stability for CO2/N2 Separation[J]. NANOMATERIALS,2017,7(10):299.
APA Ming Tan,Jingting Lu,Yang Zhang,&Heqing Jiang.(2017).Ionic Liquid Confined in Mesoporous Polymer Membrane with Improved Stability for CO2/N2 Separation.NANOMATERIALS,7(10),299.
MLA Ming Tan,et al."Ionic Liquid Confined in Mesoporous Polymer Membrane with Improved Stability for CO2/N2 Separation".NANOMATERIALS 7.10(2017):299.
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