Polydimethyl siloxane-graphene nanosheets hybrid membranes with enhanced pervaporative desulfurization performance
Yang, D; Yang, S; Jiang, ZY; Yu, SN; Zhang, JL; Pan, FS; Cao, XZ; Wang, BY; Yang, J; Cao XZ(曹兴忠); Wang BY(王宝义); Yang J(杨静)
刊名JOURNAL OF MEMBRANE SCIENCE
2015
卷号487页码:152-161
关键词Graphene nanosheets PDMS Hybrid membrane Pervaporative desulfurization Free volume
学科分类Engineering; Polymer Science
DOI10.1016/j.memsci.2015.03.068
文章类型Article
英文摘要A series of polydimethyl siloxane-graphene nanosheets (PDMS-GNS) hybrid membranes were fabricated via physically blending method. In these hybrid membranes, GNS exhibit different orientation and dispersity with the variation of GNS content. An appropriate interfacial structure favoring permeate molecules transport is constructed, which mainly arises from the non-covalent interactions between PDMS and GNS. The mechanical stability, thermal stability and anti-swelling property of the hybrid membranes are simultaneously enhanced. Pervaporative desulfurization performance of PDMS-GNS/PVDE hybrid membranes was investigated utilizing n-octane/thiophene mixture as a model gasoline system. The prepared hybrid membranes show an enhanced permeation flux while maintaining a constant enrichment factor, which should be attributed to the optimized free volume characteristics of the membranes and pi-pi interactions between GNS and thiophene. Especially, when GNS/PDMS mass ratio reaches 0.2 wt%, the membrane shows an optimum desulfurization performance with a permeation flux of 622 kg/(m(2) h) (65.9% higher than that of pure PDMS membrane) and an enrichment factor of 3.58 (similar to that of pure PDMS membrane). Additionally, the effects of GNS content, operation temperature, thiophene content, feed Row rate and operation time on membrane separation performance were investigated systematically. The prepared hybrid membranes may find potential applications in the separation of aromatics-containing mixtures. (C) 2015 Elsevier B.V. All rights reserved.
类目[WOS]Engineering, Chemical ; Polymer Science
收录类别SCI ; EI
WOS记录号WOS:000354490700017
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228496
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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Yang, D,Yang, S,Jiang, ZY,et al. Polydimethyl siloxane-graphene nanosheets hybrid membranes with enhanced pervaporative desulfurization performance[J]. JOURNAL OF MEMBRANE SCIENCE,2015,487:152-161.
APA Yang, D.,Yang, S.,Jiang, ZY.,Yu, SN.,Zhang, JL.,...&杨静.(2015).Polydimethyl siloxane-graphene nanosheets hybrid membranes with enhanced pervaporative desulfurization performance.JOURNAL OF MEMBRANE SCIENCE,487,152-161.
MLA Yang, D,et al."Polydimethyl siloxane-graphene nanosheets hybrid membranes with enhanced pervaporative desulfurization performance".JOURNAL OF MEMBRANE SCIENCE 487(2015):152-161.
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