CAS OpenIR  > 生化工程国家重点实验室
Improved performance of PDMS/silicalite-1 pervaporation membranes via designing new silicalite-1 particles
Zhuang, Xiaojie1,2; Chen, Xiangrong1; Su, Yi1; Luo, Jianquan1; Cao, Weifeng1; Wan, Yinhua1
2015-11-01
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume493Issue:NOVPages:37-45
AbstractIn order to improve the separation performance of pervaporation (PV) membranes, different silicalite-1 particles were prepared by hydrothermal synthesis in fluoride (F) or alkaline (OH) media, and then incorporated into polydimethysiloxane (PDMS) to prepare PDMS/silicalite-1 PV membranes. These silicalite-1 particles were characterized by SEM, FT-IR, NMR, XRD, BET and IGA. The results indicated that, compared with the silicalite-1(OH), the silicalite-1(F) particles had much less silanol groups and were more hydrophobic, thus showing higher selectivity to ethanol. Accordingly, the separation factor (ethanol/water) of the PDMS/silicalite-1(F) membrane was much higher than that of PDMS/silicalite-1 (OH) membrane at the same silicalite-1 loading. For the PDMS/silicalite-1(OH) membrane, the highest separation factor (23.0) was obtained at 60 wt% silicalite-1 loading, while it was found to be 23.8 at 40 wt% silicalite-1 loading for the PDMS/silicalite-1(F) membrane. However, due to the larger size of the silicalite-1(F) particles, its maximal loading (40 wt%) in PDMS was lower than that of the silicalite-1(OH) particles (60 wt.%). In order to Lake advantage of the higher selectivity of silicalite-1(F) particles and the higher loading of silicalite-1(OH), these two kinds of silicalite-1 particles were mixed and incorporated into PDMS. Using this new strategy, the total loading of the silicalite-1 particles could be up to 60 wt%, and the separation factor of such membrane increased to 28.9 when he partial loading of silicalite-1 (F) was 30 wt%. The effects of feed temperature and ethanol concentration on this new PDMS/silicalite-1 (F)-silicalite-1(OH) membrane were also investigated. The results demonstrated that the incorporation of the mixed silicalite-1(F) and silicalite-1(OH) particles into PDMS could be a promising method for the preparation of high performance PV membranes. (C) 2015 Elsevier B.V. All rights reserved.
KeywordPervaporation Silicalite-1 Pdms Separation Factor Ethanol Separation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.memsci.2015.06.043
Indexed BySCI
Language英语
WOS KeywordMIXED MATRIX MEMBRANES ; ALCOHOL PERMSELECTIVE PERVAPORATION ; SILICONE-RUBBER MEMBRANES ; COMPOSITE MEMBRANES ; AQUEOUS-SOLUTIONS ; SURFACE-MODIFICATION ; N-BUTANOL ; HIGH-FLUX ; ETHANOL ; ZEOLITE
WOS Research AreaEngineering ; Polymer Science
WOS SubjectEngineering, Chemical ; Polymer Science
WOS IDWOS:000360554300005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19514
Collection生化工程国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhuang, Xiaojie,Chen, Xiangrong,Su, Yi,et al. Improved performance of PDMS/silicalite-1 pervaporation membranes via designing new silicalite-1 particles[J]. JOURNAL OF MEMBRANE SCIENCE,2015,493(NOV):37-45.
APA Zhuang, Xiaojie,Chen, Xiangrong,Su, Yi,Luo, Jianquan,Cao, Weifeng,&Wan, Yinhua.(2015).Improved performance of PDMS/silicalite-1 pervaporation membranes via designing new silicalite-1 particles.JOURNAL OF MEMBRANE SCIENCE,493(NOV),37-45.
MLA Zhuang, Xiaojie,et al."Improved performance of PDMS/silicalite-1 pervaporation membranes via designing new silicalite-1 particles".JOURNAL OF MEMBRANE SCIENCE 493.NOV(2015):37-45.
Files in This Item:
File Name/Size DocType Version Access License
Improved performance(2254KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhuang, Xiaojie]'s Articles
[Chen, Xiangrong]'s Articles
[Su, Yi]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhuang, Xiaojie]'s Articles
[Chen, Xiangrong]'s Articles
[Su, Yi]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhuang, Xiaojie]'s Articles
[Chen, Xiangrong]'s Articles
[Su, Yi]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.