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Significantly enhanced CO2 capture properties by synergy of zinc ion and sulfonate in Pebax-pitch hybrid membranes

文献类型：期刊论文

作者Jiang, ZY; Qu, ZH; Wu, YZ; Yang, LX; Cao XZ(曹兴忠); Cao, XZ; Zhang, N; Peng, DD; Wu, H; Ren, YX
刊名JOURNAL OF MEMBRANE SCIENCE
出版日期2018
卷号549页码:670-679
关键词Poly (ether-block-amide) (Pebax) Sulfonated pitch Zinc ion Hybrid membrane CO2 separation
ISSN号0376-7388
DOI10.1016/j.memsci.2017.10.054
文献子类Article
英文摘要For high-performance hybrid membranes, it is crucial to design multi-functional filler to rationally manipulate the structure-property relationship. In this study, a novel kind of hybrid membrane was fabricated by incorporating zinc ion loaded sulfonated pitch (SP-Zn2+) nanofillers into poly (ether-block-amide) (Pebax) matrix for CO2/CH4 separation. Sulfonated pitch (SP) with high sulfonate content was functionalized by zinc ion (Zn2+) via complexation reaction to synthesize SP-Zn2+ nanofillers with high Zn2+ loading. Mixed gas separation performances of membranes with different SP-Zn2+ loading were conducted. Meanwhile, the effect of operating pressure on separation performance and long-term operation stability were investigated. The hybrid membranes displayed significantly enhanced permeability and CO2/CH4 selectivity. First, the hydrophilic sulfonate group in SP had good compatibility with Pebax matrix and effectively suppressed interfacial defects. Second, zinc ions and sulfonate group could form zinc-sulfonate complex network. The sulfonated moiety afforded strong affinity toward CO2 due to multiple interactions whereas the Zn2+ moiety afforded a transport highway for CO2. Third, the incorporation of SP-Zn2+ nanofillers could disturb the Pebax chain packing and optimize the free volume characteristics. Particularly, Pebax/SP-Zn2+(2) membrane exhibited an increment of 104% and 70.2% in CO2 permeability and CO2/CH4 selectivity respectively, much higher than that of Pebax membrane.
电子版国际标准刊号1873-3123
WOS关键词MIXED MATRIX MEMBRANES ; FACILITATED TRANSPORT MEMBRANES ; GAS SEPARATION PROPERTIES ; METAL-ORGANIC FRAMEWORK ; POROUS POLYMER NETWORKS ; WALLED CARBON NANOTUBES ; NANOCOMPOSITE MEMBRANES ; COMPOSITE MEMBRANE ; FREE-VOLUME ; POLY(VINYL ALCOHOL)
WOS研究方向Engineering ; Polymer Science
语种英语
WOS记录号WOS:000424393100071
源URL[http://ir.ihep.ac.cn/handle/311005/285617]  
专题高能物理研究所_多学科研究中心
高能物理研究所_加速器中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714		 Jiang, ZY,Qu, ZH,Wu, YZ,et al. Significantly enhanced CO2 capture properties by synergy of zinc ion and sulfonate in Pebax-pitch hybrid membranes[J]. JOURNAL OF MEMBRANE SCIENCE,2018,549:670-679.
APA Jiang, ZY.,Qu, ZH.,Wu, YZ.,Yang, LX.,曹兴忠.,...&Wu, XY.(2018).Significantly enhanced CO2 capture properties by synergy of zinc ion and sulfonate in Pebax-pitch hybrid membranes.JOURNAL OF MEMBRANE SCIENCE,549,670-679.
MLA Jiang, ZY,et al."Significantly enhanced CO2 capture properties by synergy of zinc ion and sulfonate in Pebax-pitch hybrid membranes".JOURNAL OF MEMBRANE SCIENCE 549(2018):670-679.

入库方式： OAI收割

来源：高能物理研究所

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