PDMS/PVDF hybrid electrospun membrane with superhydrophobic property and drop impact dynamics for dyeing wastewater treatment using membrane distillation

Handle URI:
http://hdl.handle.net/10754/621175
Title:
PDMS/PVDF hybrid electrospun membrane with superhydrophobic property and drop impact dynamics for dyeing wastewater treatment using membrane distillation
Authors:
An, Alicia Kyoungjin; Guo, Jiaxin; Lee, Eui-Jong; Jeong, Sanghyun; Zhao, Yanhua; Wang, Zuankai; Leiknes, TorOve ( 0000-0003-4046-5622 )
Abstract:
Fouling in membrane distillation (MD) results in an increase in operation costs and deterioration in a water quality. In this work, a poly(vinylidene fluoride-co-hexafluoropropene) (PVDF-HFP) electrospun (E-PH) membrane was fabricated by hybridizing polydimethylsiloxane (PDMS) polymeric microspheres with superhydrophobicity onto the E-PH membrane via electrospinning. The resulting hybrid PDMS with E-PH (E-PDMS) membrane showed a significant enhancement in surface hydrophobicity (contact angle, CA = 155.4°) and roughness (Ra = 1,285mm). The zeta potential of E-PDMS membrane surface showed a higher negative value than that of a commercial PVDF (C-PVDF) membrane. These properties of E-PDMS membrane provided an antifouling in treating of differently-charged dyes and generated a flake-like dye–dye (loosely bound foulant) structure on the membrane surface rather than in the membrane pores. This also led to a high productivity of E-PDMS membrane (34 Lm-2h-1, 50% higher than that of C-PVDF membrane) without fouling or wetting. In addition, complete color removal and pure water production were achieved during a long-term operation. An application of intermittent water flushing (WF) in direct contact MD (DCMD) operation led to a 99% CA recovery of E-PDMS membrane indicating its sustainability. Therefore, the E-PDMS membrane is a promising candidate for MD application in dyeing wastewater treatment.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC)
Citation:
An AK, Guo J, Lee E-J, Jeong S, Zhao Y, et al. (2016) PDMS/PVDF hybrid electrospun membrane with superhydrophobic property and drop impact dynamics for dyeing wastewater treatment using membrane distillation. Journal of Membrane Science. Available: http://dx.doi.org/10.1016/j.memsci.2016.10.028.
Publisher:
Elsevier BV
Journal:
Journal of Membrane Science
Issue Date:
21-Oct-2016
DOI:
10.1016/j.memsci.2016.10.028
Type:
Article
ISSN:
0376-7388
Sponsors:
This work was supported by City University of Hong Kong under its Start-up Grant for new faculty (Project number: 7200447) and the Research Grants Council of Hong Kong for Early Career Scheme (Project number: 9048074).
Additional Links:
http://www.sciencedirect.com/science/article/pii/S1540748916304722
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.authorAn, Alicia Kyoungjinen
dc.contributor.authorGuo, Jiaxinen
dc.contributor.authorLee, Eui-Jongen
dc.contributor.authorJeong, Sanghyunen
dc.contributor.authorZhao, Yanhuaen
dc.contributor.authorWang, Zuankaien
dc.contributor.authorLeiknes, TorOveen
dc.date.accessioned2016-10-24T13:46:33Z-
dc.date.available2016-10-24T13:46:33Z-
dc.date.issued2016-10-21en
dc.identifier.citationAn AK, Guo J, Lee E-J, Jeong S, Zhao Y, et al. (2016) PDMS/PVDF hybrid electrospun membrane with superhydrophobic property and drop impact dynamics for dyeing wastewater treatment using membrane distillation. Journal of Membrane Science. Available: http://dx.doi.org/10.1016/j.memsci.2016.10.028.en
dc.identifier.issn0376-7388en
dc.identifier.doi10.1016/j.memsci.2016.10.028en
dc.identifier.urihttp://hdl.handle.net/10754/621175-
dc.description.abstractFouling in membrane distillation (MD) results in an increase in operation costs and deterioration in a water quality. In this work, a poly(vinylidene fluoride-co-hexafluoropropene) (PVDF-HFP) electrospun (E-PH) membrane was fabricated by hybridizing polydimethylsiloxane (PDMS) polymeric microspheres with superhydrophobicity onto the E-PH membrane via electrospinning. The resulting hybrid PDMS with E-PH (E-PDMS) membrane showed a significant enhancement in surface hydrophobicity (contact angle, CA = 155.4°) and roughness (Ra = 1,285mm). The zeta potential of E-PDMS membrane surface showed a higher negative value than that of a commercial PVDF (C-PVDF) membrane. These properties of E-PDMS membrane provided an antifouling in treating of differently-charged dyes and generated a flake-like dye–dye (loosely bound foulant) structure on the membrane surface rather than in the membrane pores. This also led to a high productivity of E-PDMS membrane (34 Lm-2h-1, 50% higher than that of C-PVDF membrane) without fouling or wetting. In addition, complete color removal and pure water production were achieved during a long-term operation. An application of intermittent water flushing (WF) in direct contact MD (DCMD) operation led to a 99% CA recovery of E-PDMS membrane indicating its sustainability. Therefore, the E-PDMS membrane is a promising candidate for MD application in dyeing wastewater treatment.en
dc.description.sponsorshipThis work was supported by City University of Hong Kong under its Start-up Grant for new faculty (Project number: 7200447) and the Research Grants Council of Hong Kong for Early Career Scheme (Project number: 9048074).en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S1540748916304722en
dc.rights© 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 licenseen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectDirect contact membrane distillationen
dc.subjectdyeing wastewateren
dc.subjectelectrospun membraneen
dc.subjectfoulingen
dc.subjectpolydimethylsiloxaneen
dc.subjectpolyvinylidene fluorideen
dc.titlePDMS/PVDF hybrid electrospun membrane with superhydrophobic property and drop impact dynamics for dyeing wastewater treatment using membrane distillationen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalJournal of Membrane Scienceen
dc.eprint.versionPost-printen
dc.contributor.institutionSchool of Energy and Environment, City University of Hong Kong, Tat Chee Avenue Kowloon, Hong Kong, Chinaen
dc.contributor.institutionDepartment of Mechanical and Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue Kowloon, Hong Kong, Chinaen
kaust.authorJeong, Sanghyunen
kaust.authorLeiknes, TorOveen
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