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Elevated pervaporation performance of polysiloxane membrane using channels and active sites of metal organic framework CuBTC
Yu, SN; Jiang, ZY; Ding, H; Pan, FS; Wang, BY; Yang, J; Cao, XZ; Wang BY(王宝义); Yang J(杨静); Cao XZ(曹兴忠)
2015
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
EISSN1873-3123
Volume481Pages:73-81
SubtypeArticle
AbstractHybrid membranes with polydimethyl siloxane (PDMS) as the polymer matrix and metal organic framework (MOF) CuBTC ([Cu-3(BTC)(2)]) as the filler were fabricated and applied in pervaporative separation of thiophene from model gasoline. CuBTC submicroparticles with size of 02-0.3 mu m were synthesized through a facile method at room temperature. The morphology, crystal structure and pore parameters of CuBTC, together with the morphology, functional groups, thermal and mechanical property, free volume characteristics, sorption and separation performance of PDMS-CuBTC hybrid membranes were studied. Primary functions of CuBTC particles are summarized as follows: (i) the channels of CuBTC provide expressways with low resistance for the transport of permeates; (ii) the submicroparticles interfere with the packing of PDMS chains, generating extra free volume of the membrane; (iii) the active metal sites of CuBTC facilitate the transport of thiophene; and (iv) the channels of CuBTC sieve thiophene from the bulk of model gasoline. As a result, the normalized flux and selectivity of PDMS membranes are elevated simultaneously. The optimal separation performance is achieved when the weight ratio of normal CuBTC to PDMS reaches 8%, with a permeation flux of 194.2 kg mu m/(m(2) h) and an enrichment factor of 52 (increase by 100% and 750 compared with PDMS control membrane, respectively). (C) 2015 Elsevier B.V. All rights reserved.
KeywordPolydimethyl siloxane Metal organic framework Hybrid membrane Pervaporation Gasoline desulfurization
Subject AreaEngineering; Polymer Science
DOI10.1016/j.memsci.2015.01.045
Indexed BySCI ; EI
Language英语
WOS Research AreaEngineering, Chemical ; Polymer Science
WOS SubjectEngineering ; Polymer Science
WOS IDWOS:000350856400009
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Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228220
Collection多学科研究中心
Recommended Citation
GB/T 7714
Yu, SN,Jiang, ZY,Ding, H,et al. Elevated pervaporation performance of polysiloxane membrane using channels and active sites of metal organic framework CuBTC[J]. JOURNAL OF MEMBRANE SCIENCE,2015,481:73-81.
APA Yu, SN.,Jiang, ZY.,Ding, H.,Pan, FS.,Wang, BY.,...&曹兴忠.(2015).Elevated pervaporation performance of polysiloxane membrane using channels and active sites of metal organic framework CuBTC.JOURNAL OF MEMBRANE SCIENCE,481,73-81.
MLA Yu, SN,et al."Elevated pervaporation performance of polysiloxane membrane using channels and active sites of metal organic framework CuBTC".JOURNAL OF MEMBRANE SCIENCE 481(2015):73-81.
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