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	Water-selective permeation in hybrid membrane incorporating multi-functional hollow zif-8 nanospheres
	Cheng, Xuanxuan1,2; Jiang, Zhongyi1,2,3; Cheng, Xiaopo1; Yang, Hao1,2; Tang, Lei1,2; Liu, Guanhua1,2; Wang, Manru1,2; Wu, Hong1,2,3; Pan, Fusheng1,2,3,4; Cao, Xingzhong5,6
刊名	Journal of membrane science
	2018-06-01
卷号	555页码:146-156
关键词	Hollow zif-8 nanospheres Hybrid membrane Water-selective permeation Molecular sieving effect Hierarchical structures
ISSN号	0376-7388
DOI	10.1016/j.memsci.2018.03.024
通讯作者	Pan, fusheng(fspan@tju.edu.cn)
英文摘要	Incorporating metal-organic frameworks (mofs) into polymer to fabricate hybrid membranes is an effective approach of breaking the trade-off between permeability and selectivity. in this study, hollow zeolitic imidazolate framework-8 (hzif-8) nanospheres were prepared and blended into sodium alginate (sa) matrix to fabricate water-selective hybrid membrane, which intensify the diffusion process of water molecules dramatically owing to their well-designed hierarchical structures. the micropores on hzif-8 nanosphere shell have a molecular sieving effect, which enhances diffusion selectivity of water molecules. the hollow structure of hzif-8 nanospheres ensures the rapid diffusion of water molecules, thus elevating the permeation flux and separation factor simultaneously. besides, the intervention effects of hzif-8 nanospheres on the sa chain packing also contribute to the enhancement of permeation flux and separation factor by rendering the membrane more free volume cavities and suitable free volume cavity size for ethanol/water separation. when utilized to separate 90 wt% ethanol aqueous solution at 76 degrees c, the hybrid membrane containing 6 wt% hzif-8 displays the highest separation performance with permeation flux of 2485 g/m(2) h and separation factor of 1884, much superior to those for pure sa membrane and the hybrid membranes incorporating zeolitic imidazolate framework-8 (zif-8) nanocrystals. desirable long-term stability of the hybrid membranes was also acquired.
WOS关键词	METAL-ORGANIC FRAMEWORKS ; MIXED-MATRIX MEMBRANES ; ZEOLITIC-IMIDAZOLATE FRAMEWORK ; PERVAPORATION DEHYDRATION ; COMPOSITE MEMBRANES ; SEPARATION PERFORMANCE ; CARBON NANOTUBES ; ETHYLENE-GLYCOL ; SODIUM ALGINATE ; NANOSTRUCTURES
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:000432587300016
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177475
专题	高能物理研究所
通讯作者	Pan, Fusheng
作者单位	1.Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, 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 300387, 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 6.Beijing Engn Res Ctr Radiog Tech & Equipment, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Xuanxuan,Jiang, Zhongyi,Cheng, Xiaopo,et al. Water-selective permeation in hybrid membrane incorporating multi-functional hollow zif-8 nanospheres[J]. Journal of membrane science,2018,555:146-156.
APA	Cheng, Xuanxuan.,Jiang, Zhongyi.,Cheng, Xiaopo.,Yang, Hao.,Tang, Lei.,...&Cao, Xingzhong.(2018).Water-selective permeation in hybrid membrane incorporating multi-functional hollow zif-8 nanospheres.Journal of membrane science,555,146-156.
MLA	Cheng, Xuanxuan,et al."Water-selective permeation in hybrid membrane incorporating multi-functional hollow zif-8 nanospheres".Journal of membrane science 555(2018):146-156.

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