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SPEEK/amine-functionalized TiO2 submicrospheres mixed matrix membranes for CO2 separation
Xin, QP; Wu, H; Jiang, ZY; Li, YF; Wang, SF; Li, Q; Li, XQ; Lu, X; Cao, XZ; Yang, J;曹兴忠; Yang J(杨静)
2014
发表期刊JOURNAL OF MEMBRANE SCIENCE
卷号467页码:23-35
摘要Mixed matrix membranes (MMMs) composed of sulfonated poly(ether ether ketone) (SPEEK) and amine-functionalized titania submicrospheres were prepared. TiO2 submicrospheres (similar to 300 nm) were amine-functionalized through a facile two-step method by using dopamine (DA) and polyethyleneimine (PEI) in succession. The resultant TiO2-DA-PEI microspheres were incorporated into SPEEK with a sulfonation degree of 67%. Grafting PEI with abundant amine groups onto the titania fillers remarkably increased the content of facilitated transport sites in the membranes, leading to an increment in both gas permeability and selectivity. High humidity also contributed to the facilitated transport of CO2 via the generation of HCO3-. The highest ideal selectivities of the SPEEK/TiO2-DA-PEI membranes for CO2/CH4 and CO2/N-2 were 58 and 64, respectively, with a CO2 permeability of 1629 Barrer. Besides, the mechanical and thermal stabilities of the membranes were also enhanced compared to pure SPEEK membrane. (C) 2014 Elsevier B.V. All rights reserved.
关键词SPEEK Amine-functionalized TiO2 Mixed matrix membranes Facilitated transport CO2 separation
学科领域Engineering; Polymer Science
DOI10.1016/j.memsci.2014.04.048
收录类别SCI
WOS记录号WOS:000340315300003
引用统计
被引频次:32[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/311005/225116
专题多学科研究中心
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GB/T 7714
Xin, QP,Wu, H,Jiang, ZY,et al. SPEEK/amine-functionalized TiO2 submicrospheres mixed matrix membranes for CO2 separation[J]. JOURNAL OF MEMBRANE SCIENCE,2014,467:23-35.
APA Xin, QP.,Wu, H.,Jiang, ZY.,Li, YF.,Wang, SF.,...&杨静.(2014).SPEEK/amine-functionalized TiO2 submicrospheres mixed matrix membranes for CO2 separation.JOURNAL OF MEMBRANE SCIENCE,467,23-35.
MLA Xin, QP,et al."SPEEK/amine-functionalized TiO2 submicrospheres mixed matrix membranes for CO2 separation".JOURNAL OF MEMBRANE SCIENCE 467(2014):23-35.
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