Ionic Liquid Confined in Mesoporous Polymer Membrane with Improved Stability for CO2/N-2 Separation

doi:10.3390/nano7100299

QIBEBT-IR > 膜分离与催化研究组

	Ionic Liquid Confined in Mesoporous Polymer Membrane with Improved Stability for CO2/N-2 Separation
	Tan, Ming1 ; Lu, Jingting 1,2; Zhang, Yang1 ; Jiang, Heqing1,3
	2017-10-01
发表期刊	NANOMATERIALS
卷号	7 期号:10
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 N-2. The SILM exhibits a high ideal CO2/N-2 selectivity of 40, and an actual selectivity of approximately 25 in a mixed gas (50% CO2 and 50% N-2) 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 ; Technology
DOI	10.3390/nano7100299
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
WOS研究方向	Science & Technology - Other Topics ; Materials Science
项目资助者	National Natural Science Foundation of China(21506238 ; Shandong Provincial Natural Science Foundation, China(BS2014NJ019) ; project of Science and Technology Development Program in Shandong Province(2014GSF117031) ; State Key Laboratory of Coal Conversion(J15-16-907) ; 21403267)
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000414916100017
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/9694
专题	膜分离与催化研究组
作者单位	1.Chinese Acad Sci, Qingdao Key Lab Funct Membrane Mat & Membrane Tec, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Coal Chem, Taiyuan 030001, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Tan, Ming,Lu, Jingting,Zhang, Yang,et al. Ionic Liquid Confined in Mesoporous Polymer Membrane with Improved Stability for CO2/N-2 Separation[J]. NANOMATERIALS,2017,7(10).
APA	Tan, Ming,Lu, Jingting,Zhang, Yang,&Jiang, Heqing.(2017).Ionic Liquid Confined in Mesoporous Polymer Membrane with Improved Stability for CO2/N-2 Separation.NANOMATERIALS,7(10).
MLA	Tan, Ming,et al."Ionic Liquid Confined in Mesoporous Polymer Membrane with Improved Stability for CO2/N-2 Separation".NANOMATERIALS 7.10(2017).