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Fabrication of high silicalite-1 content filled PDMS thin composite pervaporation membrane for the separation of ethanol from aqueous solutions
Zhou, Haoli1; Zhang, Jinqiang1; Wan, Yinhua2; Jin, Wanqin1
2017-02-15
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume524Pages:1-11
Abstract

Sedimentation of silicalite-1 occurs in the fabrication of thin silicalite-1 filled polydimethylsiloxane (PDMS) hybrid composite membranes if the viscosity of membrane solution is low, which makes this preparation challenging. In this work, a new method that use a platinum catalytic agent to assist the pre-polymerization of PDMS polymer to increase the viscosity of the membrane solution was studied. With this method, supported silicalite-1 filled PDMS hybrid composite membranes were fabricated and applied in the pervaporative separation of a 5 wt% dilute ethanol aqueous solution. The effect of the concentration of platinum catalytic agent on the membrane properties was first investigated using CRM, DSC and extraction experiment. Optimum of viscosity of the composite membrane solution was then conducted and a selective layer of as thin as 5 gm thickness was obtained with a flux of 5.52 kg/m(2)h in combination with a separation factor of 15.5 at 50 degrees C. After that the separation performances of different thick membranes, interfacial adhesion properties of hybrid membranes, comparisons with other reported results and membrane stability were investigated. Results showed homemade silicalite-1-PDMS hybrid composite membrane offers relatively high separation performance, indicating a potential industrial application for the separation of ethanol from aqueous solutions.

KeywordPdms Silicalite-1 Thin Hybrid Membrane Pervaporation Ethanol Aqueous Solution
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.memsci.2016.11.029
Indexed BySCI
Language英语
WOS KeywordMixed Matrix Membranes ; Hybrid Membranes ; Permselective Pervaporation ; Improved Performance ; Cross-linking ; Hollow-fiber ; Recovery ; Flux ; Zeolite ; Surface
WOS Research AreaEngineering ; Polymer Science
WOS SubjectEngineering, Chemical ; Polymer Science
Funding OrganizationNatural Science Foundation of Jiangsu Province(BK20130925) ; National Natural Science Foundation of China(21490585 ; Project of Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Innovative Research Team Program by the Ministry of Education of China(IRT13070) ; Foundation from State Key Laboratory of Materials-Oriented Chemical Engineering(ZK201313) ; 21306080)
WOS IDWOS:000392769000001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21904
Collection生化工程国家重点实验室
Affiliation1.Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Jiangsu Natl Synerget Innovat Ctr Adv Mat, 5 Xinmofan Rd, Nanjing 210009, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Haoli,Zhang, Jinqiang,Wan, Yinhua,et al. Fabrication of high silicalite-1 content filled PDMS thin composite pervaporation membrane for the separation of ethanol from aqueous solutions[J]. JOURNAL OF MEMBRANE SCIENCE,2017,524:1-11.
APA Zhou, Haoli,Zhang, Jinqiang,Wan, Yinhua,&Jin, Wanqin.(2017).Fabrication of high silicalite-1 content filled PDMS thin composite pervaporation membrane for the separation of ethanol from aqueous solutions.JOURNAL OF MEMBRANE SCIENCE,524,1-11.
MLA Zhou, Haoli,et al."Fabrication of high silicalite-1 content filled PDMS thin composite pervaporation membrane for the separation of ethanol from aqueous solutions".JOURNAL OF MEMBRANE SCIENCE 524(2017):1-11.
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