IHEP OpenIR
Highly water-permeable and stable hybrid membrane with asymmetric covalent organic framework distribution
Yang, H; Wu, H; Pan, FS; Li, Z; Ding, H; Liu, GH; Jiang, ZY; Zhang, P; Cao, XZ; Wang, BY; Zhang P(张鹏); Cao XZ(曹兴忠); Wang BY(王宝义)
2016
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
EISSN1873-3123
Volume520Pages:583-595
SubtypeArticle
AbstractAlthough covalent organic frameworks (COFs) have received tremendous attention in recent years due to their unique advantages, their application in membrane processes for liquid mixture separation has not been explored. In this study, COF-based hybrid membranes were fabricated by incorporating COF SNW-1 into sodium alginate (SA) matrices and used for ethanol dehydration. Due to the remarkable density difference between SNW-1 and the membrane casting solvent, majority of SNW-1 nanoparticles floated to the top of the membrane and minority of SNW-1 nanoparticles were entrapped in SA during the slow evaporation of the solvent, resulting in asymmetric distributions. The surface hydrophilicity and water sorption capacity of the hybrid membrane are enhanced by the enriched SNW-1. And the porous structure of SNW-1 could render additional selectivity and free volume cavities for water molecules transfer. As a result, the hybrid membrane shows high separation factor and permeation flux of 1293 and 2397 g/m(2) h, respectively. Moreover, the incorporation of SNW-1 also endows membranes with enhanced thermal and mechanical stability, good anti-swelling properties and desirable long-term operation stability. This study offers a novel approach to design high performance hybrid membranes by incorporating fillers with the density different from that of the membrane casting solvent. (C) 2016 Elsevier B.V. All rights reserved.
KeywordCovalent organic framework SNW-1 Asymmetric distribution Hybrid membrane Ethanol dehydration
DOI10.1016/j.memsci.2016.08.022
WOS KeywordMIXED-MATRIX MEMBRANES ; ALGINATE COMPOSITE MEMBRANES ; SODIUM ALGINATE ; PERVAPORATION DEHYDRATION ; ACETIC-ACID ; CO2 CAPTURE ; SEPARATION MEMBRANES ; TRIAZINE FRAMEWORKS ; ETHANOL DEHYDRATION ; G-C3N4 NANOSHEETS
Indexed BySCI
Language英语
WOS SubjectEngineering, Chemical ; Polymer Science
WOS IDWOS:000384785000057
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/260344
Collection中国科学院高能物理研究所
Affiliation中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Yang, H,Wu, H,Pan, FS,et al. Highly water-permeable and stable hybrid membrane with asymmetric covalent organic framework distribution[J]. JOURNAL OF MEMBRANE SCIENCE,2016,520:583-595.
APA Yang, H.,Wu, H.,Pan, FS.,Li, Z.,Ding, H.,...&王宝义.(2016).Highly water-permeable and stable hybrid membrane with asymmetric covalent organic framework distribution.JOURNAL OF MEMBRANE SCIENCE,520,583-595.
MLA Yang, H,et al."Highly water-permeable and stable hybrid membrane with asymmetric covalent organic framework distribution".JOURNAL OF MEMBRANE SCIENCE 520(2016):583-595.
Files in This Item:
File Name/Size DocType Version Access License
20160728.pdf(3705KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yang, H]'s Articles
[Wu, H]'s Articles
[Pan, FS]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yang, H]'s Articles
[Wu, H]'s Articles
[Pan, FS]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yang, H]'s Articles
[Wu, H]'s Articles
[Pan, FS]'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.