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dc.contributor.authorUpadhyaya, Lakshmeesha
dc.contributor.authorGebreyohannes, Abaynesh Yihdego
dc.contributor.authorAkhtar, Faheem
dc.contributor.authorFalca, Gheorghe
dc.contributor.authorMusteata, Valentina-Elena
dc.contributor.authorMahalingam, Dinesh K.
dc.contributor.authorAlmansoury, Rneem
dc.contributor.authorNg, Kim Choon
dc.contributor.authorNunes, Suzana Pereira
dc.date.accessioned2020-07-23T12:09:39Z
dc.date.available2020-07-23T12:09:39Z
dc.date.issued2020-07-22
dc.date.submitted2020-04-28
dc.identifier.citationUpadhyaya, L., Gebreyohannes, A. Y., Akhtar, F. H., Falca, G., Musteata, V., Mahalingam, D. K., … Nunes, S. P. (2020). NEXARTM-coated hollow fibers for air dehumidification. Journal of Membrane Science, 118450. doi:10.1016/j.memsci.2020.118450
dc.identifier.issn0376-7388
dc.identifier.doi10.1016/j.memsci.2020.118450
dc.identifier.urihttp://hdl.handle.net/10754/664386
dc.description.abstractAir conditioning is one of the essential requirements for households as well as work stations. Dehumidification in air conditioning is the highest energy-consuming component, where membranes could play a crucial role. In this work, we propose the coating of NEXARTM, a commercial pentablock copolymer in tetrahydrofuran on polyetherimide hollow fiber support for separation of water vapor from humidified air. The block copolymer in tetrahydrofuran forms a lamellar/parallel cylindrical structure separated by equidistance during the morphological transformation process giving its unique characteristics with higher water vapor transfer efficiency. Both vacuum and sweep gas modes of membrane dehumidification strategies are investigated along with the detailed study of the morphological transformation process under a controlled environment, which is supported by comprehensive scanning electron microscopic and atomic force microscopic imaging. The membrane has shown water vapor permeance up to 9089 GPU with water vapor to nitrogen selectivity up to 3870. The membrane can reduce the relative humidity from 80% to 41% proving one of the competitive materials for membrane dehumidification.
dc.description.sponsorshipThis work was sponsored by King Abdullah University of Science and Technology (KAUST), grants REP/1/3988-06-01 and REP/1/3988-09-01. The authors thank Prof. Klaus-Viktor Peinemann, Dr. Jiangtao Li, Prof. William Worek, Prof. Omar Abdel Aziz and Dr. Rory Jordan for valuable discussion in the frame of the KAUST Cooling Initiative.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0376738820310279
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, [, , (2020-07-22)] DOI: 10.1016/j.memsci.2020.118450 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleNEXARTM-coated hollow fibers for air dehumidification
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentNanostructured Polymeric Membrane Lab
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalJournal of Membrane Science
dc.rights.embargodate2022-07-22
dc.eprint.versionPost-print
dc.identifier.pages118450
kaust.personUpadhyaya, Lakshmeesha
kaust.personGebreyohannes, Abaynesh Yihdego
kaust.personAkhtar, Faheem Hassan
kaust.personFalca, Gheorghe
kaust.personMusteata, Valentina-Elena
kaust.personMahalingam, Dinesh K.
kaust.personAlmansoury, Rneem
kaust.personNg, Kim Choon
kaust.personNunes, Suzana Pereira
dc.date.accepted2020-06-24
refterms.dateFOA2020-07-23T12:11:02Z
dc.date.published-online2020-07-22
dc.date.published-print2020-11


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