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	Facilitated transport membranes by incorporating graphene nanosheets with high zinc ion loading for enhanced co2 separation
	Peng, Dongdong1,2; Wang, Shaofei1,2; Tian, Zhizhang1,2; Wu, Xingyu1,2; Wu, Yingzhen1,2; Wu, Hong1,2; Xin, Qingping3; Chen, Jianfeng4; Cao, Xingzhong5; Jiang, Zhongyi1,2
刊名	Journal of membrane science
	2017-01-15
卷号	522页码:351-362
关键词	Facilitated transport membrane Hybrid membrane Pi complexation Graphene nanosheets Co2 separation
ISSN号	0376-7388
DOI	10.1016/j.memsci.2016.09.040
通讯作者	Jiang, zhongyi(zhyjiang@tju.edu.cn)
英文摘要	In this study, a novel kind of facilitated transport membrane was prepared by incorporating zinc ion-modified graphene (go-da-zn2+) nanosheets into a poly(ether-block-amide) (pebax) matrix. graphene oxide (go) nanosheets were modified with zinc ion (zn2+) by using dopamine-mediated complexation reaction. the co2 separation properties of the facilitated transport membrane were evaluated using co2/ch4 mixture as model system. the go-da-zn2+ nanosheets played an important role in enhancing membrane performance. first, the high zinc ion loading (34.2 wt% of the nanosheets) could enhance the facilitated transport of co2 based on pi-complexation mechanism, leading to a higher co2 permeability and selectivity. second, the incorporation of graphene nanosheets with high aspect ratio rendered more tortuous gas transport channels, which was favorable for hindering the penetration of ch4 with larger molecular size and thus enhancing the co2/ch4 selectivity. third, the fractional free volume of hybrid membrane was much elevated, also leading to higher co2 permeability. the optimum separation properties of go-da-zn2+ incorporated pebax membranes were achieved with a co2 permeability of 137.9 barrer and a co2/ch4 selectivity of 30.6, which were 49% and 78% higher than those of pristine pebax membrane.
WOS关键词	MIXED MATRIX MEMBRANES ; WALLED CARBON NANOTUBES ; GAS SEPARATION ; 3,4-DIHYDROXYPHENYL DERIVATIVES ; METALLODYNAMERIC MEMBRANES ; NANOCOMPOSITE MEMBRANES ; COMPOSITE MEMBRANES ; POLY(VINYL ALCOHOL) ; CO2/CH4 SEPARATION ; CAPTURE PROPERTIES
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:000387192500033
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176635
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.Tianjin Polytech Univ, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300072, Peoples R China 4.Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China 5.Chinese Acad Sci, Inst High Energy Phys, Multidiscipline Res Div, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Peng, Dongdong,Wang, Shaofei,Tian, Zhizhang,et al. Facilitated transport membranes by incorporating graphene nanosheets with high zinc ion loading for enhanced co2 separation[J]. Journal of membrane science,2017,522:351-362.
APA	Peng, Dongdong.,Wang, Shaofei.,Tian, Zhizhang.,Wu, Xingyu.,Wu, Yingzhen.,...&Jiang, Zhongyi.(2017).Facilitated transport membranes by incorporating graphene nanosheets with high zinc ion loading for enhanced co2 separation.Journal of membrane science,522,351-362.
MLA	Peng, Dongdong,et al."Facilitated transport membranes by incorporating graphene nanosheets with high zinc ion loading for enhanced co2 separation".Journal of membrane science 522(2017):351-362.

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