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dc.contributor.authorJanakiram, Saravanan
dc.contributor.authorMarin Espejo, Juan Luis
dc.contributor.authorYu, Xinyi
dc.contributor.authorAnsaloni, Luca
dc.contributor.authorDeng, Liyuan
dc.date.accessioned2021-01-05T07:38:17Z
dc.date.available2021-01-05T07:38:17Z
dc.date.issued2020
dc.identifier.issn0376-7388
dc.identifier.urihttps://hdl.handle.net/11250/2721358
dc.description.abstractRealization of suitable membrane-based technology for efficient CO2 capture to mitigate climate change relies on the development of thin-film composite (TFC) membranes with superior separation performance. Graphene oxide (GO), due to its 2D morphology, intrinsic strength and chemical compatibility, was used as a nanofiller to enhance CO2 separation performance and stability of a facilitated transport membrane. SHPAA (sterically hindered polyallylamine)-based blend matrix was selected as the polymeric matrix material in this work. The high aspect ratio of GO-based fillers, when coupled with optimized coating protocol, resulted in TFC membranes of ultrathin (200 nm) selective layers with the in-plane orientation of nanoplatelets, leading to enhanced separation properties that can be retained for long term. Porous graphene oxide (pGO) was also incorporated as nanofillers, resulting in significantly improved gas permeation at a very low filler loading of 0.2 wt%; A CO2 permeance of up to 607 GPU with a CO2/N2 separation factor of 36 in flat-sheet configuration was documented. Chemical modification of GO with PEG groups was found to further increase the selectivity of the membranes but reduces the CO2 permeance, showing a CO2/N2 separation factor of 90 with a CO2 permeance of 205 GPU. The effect of various 2D nanoplatelets on CO2 transport properties in the membranes of hydrophilic PVA (polyvinyl alcohol) matrix and facilitated transport SHPAA/PVA matrix was elucidated with respect to the nanofiller property and loading.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.ispartofseriesJournal of Membrane Science;0376-7388
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectNanocomposite membraneen_US
dc.subjectFacilitated transporten_US
dc.subjectCO2 separationen_US
dc.subjectGrapheneen_US
dc.subject2D nanoplateletsen_US
dc.titleFacilitated transport membranes containing graphene oxide-based nanoplatelets for CO2 separation: Effect of 2D filler propertiesen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holderThis is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. You are not required to obtain permission to reuse this article.en_US
dc.source.pagenumber11en_US
dc.source.volume616en_US
dc.source.journalJournal of Membrane Scienceen_US
dc.identifier.doihttps://doi.org/10.1016/j.memsci.2020.118626
dc.identifier.cristin1824677
dc.relation.projectNorges forskningsråd: 294533en_US
dc.source.articlenumber118626en_US


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