Cellulose multilayer Membranes manufacture with Ionic liquid

Handle URI:
http://hdl.handle.net/10754/553013
Title:
Cellulose multilayer Membranes manufacture with Ionic liquid
Authors:
Livazovic, Sara ( 0000-0003-2594-1272 ) ; Li, Z.; Behzad, A.R.; Peinemann, Klaus-Viktor ( 0000-0003-0309-9598 ) ; Nunes, Suzana Pereira ( 0000-0002-3669-138X )
Abstract:
Membrane 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.
KAUST Department:
Advanced Nanofabrication, Imaging and Characterization Core Lab; Advanced Membranes and Porous Materials Research Center; Water Desalination and Reuse Research Center (WDRC)
Citation:
Cellulose multilayer Membranes manufacture with Ionic liquid 2015 Journal of Membrane Science
Publisher:
Elsevier BV
Journal:
Journal of Membrane Science
Issue Date:
9-May-2015
DOI:
10.1016/j.memsci.2015.05.009
Type:
Article
ISSN:
03767388
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0376738815004202
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Advanced Nanofabrication, Imaging and Characterization Core Lab; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorLivazovic, Saraen
dc.contributor.authorLi, Z.en
dc.contributor.authorBehzad, A.R.en
dc.contributor.authorPeinemann, Klaus-Viktoren
dc.contributor.authorNunes, Suzana Pereiraen
dc.date.accessioned2015-05-17T20:33:01Zen
dc.date.available2015-05-17T20:33:01Zen
dc.date.issued2015-05-09en
dc.identifier.citationCellulose multilayer Membranes manufacture with Ionic liquid 2015 Journal of Membrane Scienceen
dc.identifier.issn03767388en
dc.identifier.doi10.1016/j.memsci.2015.05.009en
dc.identifier.urihttp://hdl.handle.net/10754/553013en
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.en
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0376738815004202en
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.2015.05.009en
dc.subjectCelluloseen
dc.subjectMembranesen
dc.subject1-ethyl-3-methylimidazolum acetateen
dc.subjectInterfacial polymerizationen
dc.subjectUltrafiltrationen
dc.titleCellulose multilayer Membranes manufacture with Ionic liquiden
dc.typeArticleen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalJournal of Membrane Scienceen
dc.eprint.versionPost-printen
kaust.authorBehzad, Ali Rezaen
kaust.authorPeinemann, Klaus-Viktoren
kaust.authorNunes, Suzana Pereiraen
kaust.authorLivazovic, Saraen
kaust.authorLi, Z.en
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