Show simple item record

dc.contributor.authorJanakiram, Saravanan
dc.contributor.authorYu, Xinyi
dc.contributor.authorAnsaloni, Luca
dc.contributor.authorDai, Zhongde
dc.contributor.authorDeng, Liyuan
dc.date.accessioned2020-11-10T13:01:43Z
dc.date.available2020-11-10T13:01:43Z
dc.date.created2019-08-27T08:56:18Z
dc.date.issued2019
dc.identifier.citationACS Applied Materials & Interfaces. 2019, 11 (36), 33302-33313.en_US
dc.identifier.issn1944-8244
dc.identifier.urihttps://hdl.handle.net/11250/2687130
dc.description.abstractThe transition toward sustainable processing entails the use of biobased alternatives as functional materials to reduce the overall carbon footprint. Nanocellulose, due to its natural availability, biodegradability, excellent mechanical properties, tunable surface, and high aspect ratio, is attracting more and more interest as a nanoscale additive in polymeric membranes. In this work, an effective way to modify nanocellulose fibril surfaces for performance enhancement in CO2 separation membranes has been demonstrated. The functionalization promptly triggered intrinsic property responses in favor of nanofiber dispersion and CO2 transport. Thin composite membranes containing the modified nanofibers in water-swelling poly(vinyl alcohol) (PVA) as well as in the blend of sterically hindered polyallylamine (SHPAA) and PVA were fabricated and tested using humid gas permeation tests. Defect-free ultrathin (300 nm) hybrid selective layers containing evenly distributed nanofibers were successfully coated. The addition of nanocellulose exhibited enhanced CO2 permeance and CO2/N2 selectivity compared to those of the neat PVA membranes. CO2 permeance up to 652 GPU and a CO2/N2 selectivity of 41.3 with SHPAA/PVA blend were documented. Functionalization plays a categorical role in the dispersion of nanocellulose fibrils in the SHPAA/PVA blend, increasing the steric stabilization and interface compatibility with the polymer matrix. The tuned interface with PEG groups act as sites for water clusters retention and increased CO2 solubility, thus creating fast diffusion pathways for CO2 transport.en_US
dc.language.isoengen_US
dc.publisherACS Publicationsen_US
dc.subjectbiomaterialen_US
dc.subjectsurface modificationen_US
dc.subjectCO2 captureen_US
dc.subjectfacilitated transporten_US
dc.subjectnanocelluloseen_US
dc.titleManipulation of Fibril Surfaces in Nanocellulose-Based Facilitated Transport Membranes for Enhanced CO2 Captureen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.rights.holderThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsami.9b09920en_US
dc.source.pagenumber33302-33313en_US
dc.source.volume11en_US
dc.source.journalACS Applied Materials & Interfacesen_US
dc.source.issue36en_US
dc.identifier.doi10.1021/acsami.9b09920
dc.identifier.cristin1718922
dc.relation.projectNorges forskningsråd: 245963en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.fulltextpostprint
cristin.qualitycode1


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record