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学科主题: 物理化学
题名: Gas separation properties of poly(amide-6-b-ethylene oxide)/amino modified multi-walled carbon nanotubes mixed matrix membranes
作者: Zhao, Dan1, 2;  Ren, Jizhong1;  Li, Hui1;  Li, Xinxue1;  Deng, Maicun1
通讯作者: 任吉中
关键词: Pebax ;  Mixed matrix membranes ;  Multi-walled carbon nanotubes ;  Gas separation
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2014-10-01
DOI: 10.1016/j.memsci.2014.05.009
卷: 467, 期:1, 页:41-47
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: Amino modified multi-walled carbon nanotubes (MWNTs-NH2) were incorporated into poly(amide-6-b-ethylene oxide) (Pebax 1657) to prepare mixed matrix membranes (MMMs). The permeation properties of CO2, N-2, CH4 and H-2 were studied and the physical properties of Pebax/MWNTs-NH2 MMMs were characterized by X-ray diffractometer (XRD), Fourier transform infrared (FTIR) and scanning electron microscopy (SEM). The incorporation of MWNTs-NH2 increased the amorphous region of Pebax phase in Pebax/MWNTs-NH2 MMMs, which was beneficial for the improvement of gas permeabilities. The apparent activation energy for permeation (E-p) for CO2 decreased with the increase of pressure, while those for N-2, CH4 and H-2 almost did not change. The E-p for CO2, N-2, CH4 and H-2 slightly decreased with the incorporation of MWNTs-NH2. Compared with pristine Pebax membrane, CO2 permeability increased almost 3 times for Pebax/MWNTs-NH2 MMMs with 33 wt% MWNTs-NH2. With the increase of MWNTs-NH2 content, the normalized permeabilities of N-2, CH4 and CO2 showed almost the same increment and the selectivities of CO2/N-2, CO2/H-2 and CO2/CH4 remained constant, which were consistent with the Maxwell model prediction. Thus, the incorporation of MWNTs-NH2 significantly improved the gas permeation properties of Pebax/MWNTs-NH2 MMMs. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: GLYCOL BLEND MEMBRANES ;  CO2 SEPARATION ;  MECHANICAL-PROPERTIES ;  PERMEATION PROPERTIES ;  TRANSPORT-PROPERTIES ;  COMPOSITE MEMBRANES ;  INORGANIC FILLERS ;  DIOXIDE ;  NANOCOMPOSITES ;  PERMEABILITY
语种: 英语
WOS记录号: WOS:000340315300005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/144534
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, Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Zhao, Dan,Ren, Jizhong,Li, Hui,et al. Gas separation properties of poly(amide-6-b-ethylene oxide)/amino modified multi-walled carbon nanotubes mixed matrix membranes[J]. JOURNAL OF MEMBRANE SCIENCE,2014,467(1):41-47.
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