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dc.contributor.authorLe, Ngoc Lieu
dc.contributor.authorNunes, Suzana Pereira
dc.date.accessioned2017-05-31T11:23:08Z
dc.date.available2017-05-31T11:23:08Z
dc.date.issued2017-03-31
dc.identifier.citationLe NL, Nunes SP (2017) Ethylene glycol as bore fluid for hollow fiber membrane preparation. Journal of Membrane Science 533: 171–178. Available: http://dx.doi.org/10.1016/j.memsci.2017.03.045.
dc.identifier.issn0376-7388
dc.identifier.doi10.1016/j.memsci.2017.03.045
dc.identifier.urihttp://hdl.handle.net/10754/623831
dc.description.abstractWe proposed the use of ethylene glycol and its mixture with water as bore fluid for the preparation of poly(ether imide) (PEI) hollow fiber membranes and compared their performance and morphology with membranes obtained with conventional coagulants (water and its mixture with the solvent N-methylpyrrolidone (NMP)). Thermodynamics and kinetics of the systems were investigated. Water and 1:1 water:EG mixtures lead to fast precipitation rates. Slow precipitation is observed for both pure EG and 9:1 NMP:water mixture, but the reasons for that are different. While low osmotic driving force leads to slow NMP and water transport when NMP:water is used, the high EG viscosity is the reason for the slow phase separation when EG is the bore fluid. The NMP:water mixture produces fibers with mixed sponge-like and finger-like structure with large pores in the inner and outer layers; and hence leading to a high water permeance and a high MWCO suitable for separation of large-sized proteins. As compared to NMP:water, using EG as bore fluid provides fibers with a finger-like bilayered structure and sponge-like layers near the surfaces, and hence contributing to the higher water permeance. It also induces small pores for better protein rejection.
dc.description.sponsorshipThe work was supported by King Abdullah University of Science and Technology (KAUST).
dc.publisherElsevier BV
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0376738817304520
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, [, , (2017-03-31)] DOI: 10.1016/j.memsci.2017.03.045 . © 2017. 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.subjecthollow fiber
dc.subjectbore fluid
dc.subjectethylene glycol
dc.subjectprecipitation rate
dc.subjectkinetics
dc.titleEthylene glycol as bore fluid for hollow fiber membrane preparation
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
kaust.personLe, Ngoc Lieu
kaust.personNunes, Suzana Pereira
refterms.dateFOA2019-03-31T00:00:00Z
dc.date.published-online2017-03-31
dc.date.published-print2017-07


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