CAS OpenIR  > 生化工程国家重点实验室
Sensitivity of coalescence separation of oil-water emulsions using stainless steel felt enabled by LBL self-assembly and CVD
Li, Xiaoyu1; Hu, Dan1,2; Cao, Lixia1; Yang, Chuanfang1
2015
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume5Issue:87Pages:71345-71354
Abstract

Commercial stainless steel felt was endowed with LBL self-assembly of dual size nano-SiO2 particles to have a hierarchical micro/nano surface structure. The pore size of the felt was tailored at the same time by tuning the assembling cycles. Chemical vapor deposition (CVD) of 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS) at two concentration levels was applied to the roughened felt to render it both hydrophobic/superhydrophobic and oleophobic. The felt thus prepared was wettable by oil underwater, which allowed it to be effective as a coalescing material for separating 4 kinds of oil-in-water emulsions. The nanometer-thick POTS coating was durable for months. The coalescence separation efficiency was found to be dependent on both pore size and surface wettability of the felt in air. It was less sensitive to pore size change when the surface was more hydrophobic and oleophobic (amphiphobic). When the pore size was kept constant, more amphiphobic felt was less efficient for separation. When the surface turned superhydrophobic, the separation became better as the pore size was reduced. These findings provide new insights for designing better coalescence materials, especially when the effects of surface wettability and pore size are intermingled.

SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c5ra10415g
Indexed BySCI
Language英语
WOS KeywordOIL/WATER SEPARATION ; PVDF MEMBRANES ; FACILE FABRICATION ; POLYMER MEMBRANES ; COATINGS ; MESH ; ABSORPTION ; SURFACE ; LAYER ; SUPERHYDROPHILICITY
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000360445500078
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19511
Collection生化工程国家重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Green Proc & Engn, Natl Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Xiaoyu,Hu, Dan,Cao, Lixia,et al. Sensitivity of coalescence separation of oil-water emulsions using stainless steel felt enabled by LBL self-assembly and CVD[J]. RSC ADVANCES,2015,5(87):71345-71354.
APA Li, Xiaoyu,Hu, Dan,Cao, Lixia,&Yang, Chuanfang.(2015).Sensitivity of coalescence separation of oil-water emulsions using stainless steel felt enabled by LBL self-assembly and CVD.RSC ADVANCES,5(87),71345-71354.
MLA Li, Xiaoyu,et al."Sensitivity of coalescence separation of oil-water emulsions using stainless steel felt enabled by LBL self-assembly and CVD".RSC ADVANCES 5.87(2015):71345-71354.
Files in This Item:
File Name/Size DocType Version Access License
Sensitivity of coale(996KB)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
[Li, Xiaoyu]'s Articles
[Hu, Dan]'s Articles
[Cao, Lixia]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Xiaoyu]'s Articles
[Hu, Dan]'s Articles
[Cao, Lixia]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Xiaoyu]'s Articles
[Hu, Dan]'s Articles
[Cao, Lixia]'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.