Selective separation of oil and water with special wettability mesh membranes

Handle URI:
http://hdl.handle.net/10754/622968
Title:
Selective separation of oil and water with special wettability mesh membranes
Authors:
Liu, Defei; Yu, Yuanlie ( 0000-0002-3895-6222 ) ; Chen, Xin; Zheng, Yuying ( 0000-0002-4579-2449 )
Abstract:
Due to the different interfacial effects of oil and water, utilizing the special wettability of solid surfaces to design an oil and water separation process has been demonstrated to be an effective approach for oil/water separation. In this report, a simple process has been developed to fabricate special surface wettability mesh membranes. The carbon nanoparticles with diameters of 10 nm were first coated onto the surface of steel wires based on a candle soot coating process. These templates of carbon nanoparticles were then coated with a more stable layer of silica (SiO2) particles via a facile chemical vapor deposition route. After being modified by two separate methods, a superhydrophobic/superoleophilic membrane was obtained by the use of 1H,1H,2H,2H-perfluorooctyltrichlorosilane (PFOTS) and a oleophobic/superhydrophilic membrane was obtained by using poly(diallyldimethylammonium-perfluorooctanoate) (PDDA–PFO). Separation experiments show that these superhydrophobic/superoleophilic or oleophobic/superhydrophilic mesh membranes can be used to selectively separate oil/water with a high flux of more than 930 L m−2 h−1 and a collecting efficiency of over 97%. Furthermore, the repetitions of the separation experiments demonstrate that these superhydrophobic/superoleophilic or oleophobic/superhydrophilic mesh membranes are durable, stable and reusable, making them encouraging candidates for practical oil-polluted water treatment.
KAUST Department:
Advanced Membranes and Porous Materials Research Center; Chemical and Biological Engineering Program
Citation:
Liu D, Yu Y, Chen X, Zheng Y (2017) Selective separation of oil and water with special wettability mesh membranes. RSC Adv 7: 12908–12915. Available: http://dx.doi.org/10.1039/c7ra00237h.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
RSC Adv.
Issue Date:
24-Feb-2017
DOI:
10.1039/c7ra00237h
Type:
Article
ISSN:
2046-2069
Sponsors:
This work was supported by science and Technology Planning project of Guangdong (No. 2014A010105041, 2013B021700001), China. We also acknowledge Casey Wetzel from U. M. and Jean-Pierre de Levay from U. W. for comments that greatly improved the manuscript.
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2017/RA/C7RA00237H#!divAbstract
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Chemical and Biological Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorLiu, Defeien
dc.contributor.authorYu, Yuanlieen
dc.contributor.authorChen, Xinen
dc.contributor.authorZheng, Yuyingen
dc.date.accessioned2017-03-06T11:13:35Z-
dc.date.available2017-03-06T11:13:35Z-
dc.date.issued2017-02-24en
dc.identifier.citationLiu D, Yu Y, Chen X, Zheng Y (2017) Selective separation of oil and water with special wettability mesh membranes. RSC Adv 7: 12908–12915. Available: http://dx.doi.org/10.1039/c7ra00237h.en
dc.identifier.issn2046-2069en
dc.identifier.doi10.1039/c7ra00237hen
dc.identifier.urihttp://hdl.handle.net/10754/622968-
dc.description.abstractDue to the different interfacial effects of oil and water, utilizing the special wettability of solid surfaces to design an oil and water separation process has been demonstrated to be an effective approach for oil/water separation. In this report, a simple process has been developed to fabricate special surface wettability mesh membranes. The carbon nanoparticles with diameters of 10 nm were first coated onto the surface of steel wires based on a candle soot coating process. These templates of carbon nanoparticles were then coated with a more stable layer of silica (SiO2) particles via a facile chemical vapor deposition route. After being modified by two separate methods, a superhydrophobic/superoleophilic membrane was obtained by the use of 1H,1H,2H,2H-perfluorooctyltrichlorosilane (PFOTS) and a oleophobic/superhydrophilic membrane was obtained by using poly(diallyldimethylammonium-perfluorooctanoate) (PDDA–PFO). Separation experiments show that these superhydrophobic/superoleophilic or oleophobic/superhydrophilic mesh membranes can be used to selectively separate oil/water with a high flux of more than 930 L m−2 h−1 and a collecting efficiency of over 97%. Furthermore, the repetitions of the separation experiments demonstrate that these superhydrophobic/superoleophilic or oleophobic/superhydrophilic mesh membranes are durable, stable and reusable, making them encouraging candidates for practical oil-polluted water treatment.en
dc.description.sponsorshipThis work was supported by science and Technology Planning project of Guangdong (No. 2014A010105041, 2013B021700001), China. We also acknowledge Casey Wetzel from U. M. and Jean-Pierre de Levay from U. W. for comments that greatly improved the manuscript.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2017/RA/C7RA00237H#!divAbstracten
dc.rightsThis article is licensed under a Creative Commons Attribution 3.0 Unported Licence.en
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.titleSelective separation of oil and water with special wettability mesh membranesen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentChemical and Biological Engineering Programen
dc.identifier.journalRSC Adv.en
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionSchool of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Chinaen
dc.contributor.institutionSchool of Environment and Chemical Engineering, Foshan University, Foshan 528000, Chinaen
kaust.authorLiu, Defeien
kaust.authorYu, Yuanlieen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.