Hierarchical Composite Membranes with Robust Omniphobic Surface Using Layer-By-Layer Assembly Technique

Handle URI:
http://hdl.handle.net/10754/626864
Title:
Hierarchical Composite Membranes with Robust Omniphobic Surface Using Layer-By-Layer Assembly Technique
Authors:
Woo, Yun Chul; Kim, Youngjin; Yao, Minwei; Tijing, Leonard Demegilio; Choi, Juneseok; Lee, Sangho; Kim, Seunghyun; Shon, Hokyong
Abstract:
In this study, composite membranes were fabricated via layer-by-layer (LBL) assembly of negatively-charged silica aerogel (SiA) and 1H, 1H, 2H, 2H – Perfluorodecyltriethoxysilane (FTCS) on a polyvinylidene fluoride phase inversion membrane, and interconnecting them with positively-charged poly(diallyldimethylammonium chloride) (PDDA) via electrostatic interaction. The results showed that the PDDA-SiA-FTCS coated membrane had significantly enhanced the membrane structure and properties. New trifluoromethyl and tetrafluoroethylene bonds appeared at the surface of the coated membrane, which led to lower surface free energy of the composite membrane. Additionally, the LBL membrane showed increased surface roughness. The improved structure and property gave the LBL membrane an omniphobic property, as indicated by its good wetting resistance. The membrane performed a stable air gap membrane distillation (AGMD) flux of 11.22 L/m2h with very high salt rejection using reverse osmosis brine from coal seam gas produced water as feed with the addition of up to 0.5 mM SDS solution. This performance was much better compared to those of the neat membrane. The present study suggests that the enhanced membrane properties with good omniphobicity via LBL assembly make the porous membranes suitable for long-term AGMD operation with stable permeation flux when treating challenging saline wastewater containing low surface tension organic contaminants.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Woo YC, Kim Y, Yao M, Tijing LD, Choi J, et al. (2018) Hierarchical Composite Membranes with Robust Omniphobic Surface Using Layer-By-Layer Assembly Technique. Environmental Science & Technology. Available: http://dx.doi.org/10.1021/acs.est.7b05450.
Publisher:
American Chemical Society (ACS)
Journal:
Environmental Science & Technology
Issue Date:
17-Jan-2018
DOI:
10.1021/acs.est.7b05450
Type:
Article
ISSN:
0013-936X; 1520-5851
Sponsors:
This research was supported by a grant (17IFIP-B065893-05) from the Industrial Facilities & Infrastructure Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government. The authors also acknowledge the grants from the ARC Future Fellowship (FT140101208) and 2017 FEIT Post Thesis Publication Scholarship by University of Technology Sydney (UTS).
Additional Links:
http://pubs.acs.org/doi/10.1021/acs.est.7b05450
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorWoo, Yun Chulen
dc.contributor.authorKim, Youngjinen
dc.contributor.authorYao, Minweien
dc.contributor.authorTijing, Leonard Demegilioen
dc.contributor.authorChoi, Juneseoken
dc.contributor.authorLee, Sanghoen
dc.contributor.authorKim, Seunghyunen
dc.contributor.authorShon, Hokyongen
dc.date.accessioned2018-01-28T07:01:37Z-
dc.date.available2018-01-28T07:01:37Z-
dc.date.issued2018-01-17en
dc.identifier.citationWoo YC, Kim Y, Yao M, Tijing LD, Choi J, et al. (2018) Hierarchical Composite Membranes with Robust Omniphobic Surface Using Layer-By-Layer Assembly Technique. Environmental Science & Technology. Available: http://dx.doi.org/10.1021/acs.est.7b05450.en
dc.identifier.issn0013-936Xen
dc.identifier.issn1520-5851en
dc.identifier.doi10.1021/acs.est.7b05450en
dc.identifier.urihttp://hdl.handle.net/10754/626864-
dc.description.abstractIn this study, composite membranes were fabricated via layer-by-layer (LBL) assembly of negatively-charged silica aerogel (SiA) and 1H, 1H, 2H, 2H – Perfluorodecyltriethoxysilane (FTCS) on a polyvinylidene fluoride phase inversion membrane, and interconnecting them with positively-charged poly(diallyldimethylammonium chloride) (PDDA) via electrostatic interaction. The results showed that the PDDA-SiA-FTCS coated membrane had significantly enhanced the membrane structure and properties. New trifluoromethyl and tetrafluoroethylene bonds appeared at the surface of the coated membrane, which led to lower surface free energy of the composite membrane. Additionally, the LBL membrane showed increased surface roughness. The improved structure and property gave the LBL membrane an omniphobic property, as indicated by its good wetting resistance. The membrane performed a stable air gap membrane distillation (AGMD) flux of 11.22 L/m2h with very high salt rejection using reverse osmosis brine from coal seam gas produced water as feed with the addition of up to 0.5 mM SDS solution. This performance was much better compared to those of the neat membrane. The present study suggests that the enhanced membrane properties with good omniphobicity via LBL assembly make the porous membranes suitable for long-term AGMD operation with stable permeation flux when treating challenging saline wastewater containing low surface tension organic contaminants.en
dc.description.sponsorshipThis research was supported by a grant (17IFIP-B065893-05) from the Industrial Facilities & Infrastructure Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government. The authors also acknowledge the grants from the ARC Future Fellowship (FT140101208) and 2017 FEIT Post Thesis Publication Scholarship by University of Technology Sydney (UTS).en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/10.1021/acs.est.7b05450en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Environmental Science & Technology, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/10.1021/acs.est.7b05450.en
dc.subjectMembrane distillationen
dc.subjectomniphobicen
dc.subjectlayer-by-layeren
dc.subjectsurface modificationen
dc.subjecthierarchical structureen
dc.titleHierarchical Composite Membranes with Robust Omniphobic Surface Using Layer-By-Layer Assembly Techniqueen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalEnvironmental Science & Technologyen
dc.eprint.versionPost-printen
dc.contributor.institutionCentre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney (UTS) P. O. Box 123, 15 Broadway, NSW 2007, Australiaen
dc.contributor.institutionEnvironment and Plant Research Institute, Korea Institute of Civil Engineering and Building Technology (KICT), 283, Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Republic of Koreaen
dc.contributor.institutionSchool of Civil and Environmental Engineering, Kookmin University, 77 Jeongneung-ro, Junggu, Seoul, 136-702, Republic of Koreaen
dc.contributor.institutionDepartment of Civil Engineering, Kyungnam University, Wolyoung-dong, Changwon 631-701, Republic of Koreaen
kaust.authorKim, Youngjinen
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