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dc.contributor.authorLee, Jung Gil
dc.contributor.authorLee, Eui-Jong
dc.contributor.authorJeong, Sanghyun
dc.contributor.authorGuo, Jiaxin
dc.contributor.authorAn, Alicia Kyoungjin
dc.contributor.authorGuo, Hong
dc.contributor.authorKim, Joonha
dc.contributor.authorLeiknes, TorOve
dc.contributor.authorGhaffour, NorEddine
dc.date.accessioned2016-12-29T13:20:21Z
dc.date.available2016-12-29T13:20:21Z
dc.date.issued2016-12-27
dc.identifier.citationLee J-G, Lee E-J, Jeong S, Guo J, An AK, et al. (2016) Theoretical modeling and experimental validation of transport and separation properties of carbon nanotube electrospun membrane distillation. Journal of Membrane Science. Available: http://dx.doi.org/10.1016/j.memsci.2016.12.045.
dc.identifier.issn0376-7388
dc.identifier.doi10.1016/j.memsci.2016.12.045
dc.identifier.urihttp://hdl.handle.net/10754/622098
dc.description.abstractDeveloping a high flux and selective membrane is required to make membrane distillation (MD) a more attractive desalination process. Amongst other characteristics membrane hydrophobicity is significantly important to get high vapor transport and low wettability. In this study, a laboratory fabricated carbon nanotubes (CNTs) composite electrospun (E-CNT) membrane was tested and has showed a higher permeate flux compared to poly(vinylidene fluoride-co-hexafluoropropylene) (PH) electrospun membrane (E-PH membrane) in a direct contact MD (DCMD) configuration. Only 1% and 2% of CNTs incorporation resulted in an enhanced permeate flux with lower sensitivity to feed salinity while treating a 35 and 70 g/L NaCl solutions. Experimental results and the mechanisms of E-CNT membrane were validated by a proposed new step-modeling approach. The increased vapor transport in E-CNT membranes could not be elucidated by an enhancement of mass transfer only at a given physico-chemical properties. However, the theoretical modeling approach considering the heat and mass transfers simultaneously enabled to explain successfully the enhanced flux in the DCMD process using E-CNT membranes. This indicates that both mass and heat transfers improved by CNTs are attributed to the enhanced vapor transport in the E-CNT membrane.
dc.description.sponsorshipThe research reported in this paper was supported by King Abdullah University of Science and Technology (KAUST), Saudi Arabia, and University Grants Committee of the Hong Kong for Early Career Scheme (UGC ECS/GRF Project number: 9048074).
dc.publisherElsevier BV
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0376738816315514
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Membrane Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Membrane Science, 27 December 2016. DOI: 10.1016/j.memsci.2016.12.045
dc.subjectCarbon nanotubes
dc.subjectDesalination
dc.subjectDirect contact membrane distillation
dc.subjectElectrospun membrane
dc.subjectHeat and mass transfers
dc.titleTheoretical modeling and experimental validation of transport and separation properties of carbon nanotube electrospun membrane distillation
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalJournal of Membrane Science
dc.eprint.versionPost-print
dc.contributor.institutionSchool of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
dc.contributor.institutionDepartment of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, Korea
kaust.personLee, Jung Gil
kaust.personJeong, Sanghyun
kaust.personLeiknes, TorOve
kaust.personGhaffour, Noreddine
dc.date.published-online2016-12-27
dc.date.published-print2017-03


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