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Janus composite nanoparticle-incorporated mixed matrix membranes for CO2 separation
Zhou, TT; Luo, L; Hua, S; Wang, SF; Zhang, RN; Wu, H; Jiang, ZY; Wang, BY; Yang, J; Wang BY(王宝义); Yang J(杨静)
2015
发表期刊JOURNAL OF MEMBRANE SCIENCE
卷号489页码:1-10
文章类型Article
摘要Silver-containing Janus nanoparticles were synthesized by adhering silver onto polydopamine nanosphere and then were embedded in Pebax (R) MH 1657 polymer matrix to fabricate mixed matrix membranes for CO2 capture. The Janus nanoparticle was composed of a polydopamine nanosphere (similar to 80 nm) with plenty of catechol-chelated Ag+ ions and a catechol-reduced metallic Ag nanoparticle (similar to 20 nm) epitaxially growing from the surface of the polydopamine nanosphere. The highly loaded Ag+ ions (58.41 wt% of total Ag content) served as CO2 facilitated transport carriers and thereby endowed the membrane with CO2 facilitated transport ability, and meanwhile the inorganic metallic Ag nanoparticle can interfere the polymer chain packing and optimize the membrane free volume characteristics therefore affecting the diffusion behavior of gas molecules. The membrane separation performance for pure gas (CO2, CH4, and N-2) and binary gas mixtures (CO2/CH4 and CO2/N-2) of the Janus nanoparticle-incorporated Pebax membrane was investigated and compared with that of the polydopamine nanosphere-incorporated membrane without silver modification. An anti-tradeoff effect was achieved by incorporation of the silver-containing Janus nanoparticles. The best separation performance of the Janus-incorporated Pebax membrane for pure gas was obtained with a CO2 permeability of 150 Barrer and a CO2/gas selectivity of 26.3 for CO2/CH4 and 72.5 for CO2/N-2, i.e., 83%, 42% and 39% higher than those of neat Pebax membrane, respectively. The results suggested that incorporation of the Janus nanoparticles could achieve both a diffusion tuning effect and a facilitated transport effect simultaneously. (C) 2015 Elsevier B.V. All rights reserved,
关键词Janus composite particle Silver modification Mixed matrix membrane Facilitated transport CO2 separation
学科领域Engineering; Polymer Science
DOI10.1016/j.memsci.2015.03.070
收录类别SCI ; EI
WOS类目Engineering, Chemical ; Polymer Science
WOS记录号WOS:000355209300001
引用统计
被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228482
专题多学科研究中心
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GB/T 7714
Zhou, TT,Luo, L,Hua, S,et al. Janus composite nanoparticle-incorporated mixed matrix membranes for CO2 separation[J]. JOURNAL OF MEMBRANE SCIENCE,2015,489:1-10.
APA Zhou, TT.,Luo, L.,Hua, S.,Wang, SF.,Zhang, RN.,...&杨静.(2015).Janus composite nanoparticle-incorporated mixed matrix membranes for CO2 separation.JOURNAL OF MEMBRANE SCIENCE,489,1-10.
MLA Zhou, TT,et al."Janus composite nanoparticle-incorporated mixed matrix membranes for CO2 separation".JOURNAL OF MEMBRANE SCIENCE 489(2015):1-10.
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