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题名: Polydimethylsiloxane/postmodified MIL-53 composite layer coated on asymmetric hollow fiber membrane for improving gas separation performance
作者: Zhu, Haitao1, 2;  Jie, Xingming1;  Wang, Lina1;  Liu, Dandan1;  Cao, Yiming1
关键词: asymmetric hollow fiber membrane ;  composite layer ;  gas separation ;  MIL-53
刊名: JOURNAL OF APPLIED POLYMER SCIENCE
发表日期: 2017-07-10
DOI: 10.1002/app.44999
卷: 134
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Polymer Science
研究领域[WOS]: Polymer Science
英文摘要: Composite layer containing postmodified MIL-53 (P-MIL-53) was exploited to be coated on as-fabricated asymmetric hollow fiber membrane for improving gas separation performance. The morphology and pore size distribution of P-MIL-53 particles were characterized by SEM and N-2 adsorption isotherm. The EDX mapping and FTIR spectra were performed to confirm the presence of P-MIL-53 deposited on the outer surface of hollow fiber membranes. The results of pure gas permeation measurement indicated that incorporation of P-MIL-53 particles in coating layer could improve permeation properties of hollow fiber membranes. By varying coating times and P-MIL-53 content, the membrane coated with PDMS/15%P-MIL-53 composite by three times achieved best performance. Compared to pure PDMS coated membrane, CO2 permeance was enhanced from 29.96 GPU to 40.24 GPU and ideal selectivity of CO2/N-2 and CO2/CH4 also increased from 23.28 and 26.95 to 28.08 and 32.03, respectively. The gas transport through composite membrane was governed by solution-diffusion mechanism and CO2 preferential adsorption of P-MIL-53 contributed to considerable increase of CO2 solubility resulting in accelerated permeation rate. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44999.
关键词[WOS]: MIXED MATRIX MEMBRANE ;  METAL-ORGANIC FRAMEWORK ;  ZEOLITIC IMIDAZOLATE FRAMEWORKS ;  CO2 SEPARATION ;  CO2/CH4 SEPARATION ;  HYDROGEN SEPARATION ;  DEFECT-FREE ;  FABRICATION ;  POLYMER ;  NANOCRYSTALS
语种: 英语
WOS记录号: WOS:000398890900011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152333
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Nation Lib Clean Energy DNL, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Zhu, Haitao,Jie, Xingming,Wang, Lina,et al. Polydimethylsiloxane/postmodified MIL-53 composite layer coated on asymmetric hollow fiber membrane for improving gas separation performance[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2017,134.
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