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Title:
Ionic Liquid Confined in Mesoporous Polymer Membrane with Improved Stability for CO2/N2 Separation
Author: Ming Tan; Jingting Lu; Yang Zhang; Heqing Jiang
Source: NANOMATERIALS
Issued Date: 2017-09-29
Volume: 7, Issue:10, Pages:299
Keyword: gas separation ; supported membrane ; mesoporous polymer ; ionic liquid ; high stability
DOI: 10.3390/nano7100299
Corresponding Author: Heqing Jiang
DOC Type: Article
English Abstract: 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.
WOS Headings: Science & Technology - Other Topics ; Materials Science
WOS Subject: Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Keyword Plus: CARBON-DIOXIDE ; PHASE-BEHAVIOR ; MIXED-GAS ; PERMEABILITY ; CO2 ; PERFORMANCE ; SELECTIVITY ; TRANSPORT ; SUPPORTS ; ALUMINA
Indexed Type: SCI
Project Number: 21506238 ; 21403267 ; BS2014NJ019 ; 2014GSF117031 ; J15-16-907
Project: 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
Funder: 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
Related URLs: 查看原文
Language: 英语
WOS ID: WOS:000414916100017
Rank: 1
Citation statistics:
Content Type: 期刊论文
URI: http://ir.qibebt.ac.cn/handle/337004/9816
Appears in Collections:环境资源化与水回用团队_期刊论文

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description.institution: 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

Recommended Citation:
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.
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