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dc.contributor.authorLivazovic, Sara
dc.contributor.authorLi, Z.
dc.contributor.authorBehzad, Ali Reza
dc.contributor.authorPeinemann, Klaus-Viktor
dc.contributor.authorNunes, Suzana Pereira
dc.date.accessioned2015-05-17T20:33:01Z
dc.date.available2015-05-17T20:33:01Z
dc.date.issued2015-05-09
dc.identifier.citationCellulose multilayer Membranes manufacture with Ionic liquid 2015 Journal of Membrane Science
dc.identifier.issn03767388
dc.identifier.doi10.1016/j.memsci.2015.05.009
dc.identifier.urihttp://hdl.handle.net/10754/553013
dc.description.abstractMembrane processes are considered energy-efficient for water desalination and treatment. However most membranes are based on polymers prepared from fossil petrochemical sources. The development of multilayer membranes for nanofiltration and ultrafiltration, with thin selective layers of naturally available cellulose has been hampered by the availability of non-aggressive solvents. We propose the manufacture of cellulose membranes based on two approaches: (i) silylation, coating from solutions in tetrahydrofuran, followed by solvent evaporation and cellulose regeneration by acid treatment; (ii) casting from solution in 1-ethyl-3-methylimidazolum acetate ([C2mim]OAc), an ionic liquid, followed by phase inversion in water. By these methods porous supports could be easily coated with semi-crystalline cellulose. The membranes were hydrophilic with contact angles as low as 22.0°, molecular weight cut-off as low as 3000 g mol-1 with corresponding water permeance of 13.8 Lm−2 h−1 bar−1. Self-standing cellulose membranes were also manufactured without porous substrate, using only ionic liquid as green solvent. This membrane was insoluble in water, tetrahydrofuran, hexane, N,N-dimethylformamide, 1-methyl-2-pyrrolidinone and N,N-dimethylacetamide.
dc.publisherElsevier BV
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0376738815004202
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, 9 May 2015. DOI: 10.1016/j.memsci.2015.05.009
dc.subjectCellulose
dc.subjectMembranes
dc.subject1-ethyl-3-methylimidazolum acetate
dc.subjectInterfacial polymerization
dc.subjectUltrafiltration
dc.titleCellulose multilayer Membranes manufacture with Ionic liquid
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Lab
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentChemical and Biological Engineering Program
dc.contributor.departmentElectron Microscopy
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentUpstream Petroleum Engineering Research Center (UPERC)
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalJournal of Membrane Science
dc.eprint.versionPost-print
kaust.personBehzad, Ali Reza
kaust.personPeinemann, Klaus-Viktor
kaust.personNunes, Suzana Pereira
kaust.personLivazovic, Sara
kaust.personLi, Z.
refterms.dateFOA2017-05-09T00:00:00Z
dc.date.published-online2015-05-09
dc.date.published-print2015-09


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