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	Significantly enhanced co2 capture properties by synergy of zinc ion and sulfonate in pebax-pitch hybrid membranes
	Zhang, Ning1,2; Peng, Dongdong1,2; Wu, Hong1,2; Ren, Yanxiong1,2; Yang, Leixin1,2; Wu, Xingyu1,2; Wu, Yingzhen1,2; Qu, Zihan1,2; Jiang, Zhongyi1,2; Cao, Xingzhong3
刊名	Journal of membrane science
	2018-03-01
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
DOI	10.1016/j.memsci.2017.10.054
通讯作者	Jiang, zhongyi(zhyjiang@tju.edu.cn)
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.
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
WOS类目	Engineering, Chemical ; Polymer Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000424393100071
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2178002
专题	高能物理研究所
通讯作者	Jiang, Zhongyi
作者单位	1.Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, 92 Weijin Rd, Tianjin 300072, Peoples R China 2.Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Multidiscipline Res Div, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ning,Peng, Dongdong,Wu, Hong,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	Zhang, Ning.,Peng, Dongdong.,Wu, Hong.,Ren, Yanxiong.,Yang, Leixin.,...&Cao, Xingzhong.(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	Zhang, Ning,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.

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