DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yang, Euntae | ko |
dc.contributor.author | Karahan, H. Enis | ko |
dc.contributor.author | Goh, Kunli | ko |
dc.contributor.author | Chuah, Chong Yang | ko |
dc.contributor.author | Wang, Rong | ko |
dc.contributor.author | Bae, Tae-Hyun | ko |
dc.date.accessioned | 2019-11-04T02:20:08Z | - |
dc.date.available | 2019-11-04T02:20:08Z | - |
dc.date.created | 2019-10-15 | - |
dc.date.created | 2019-10-15 | - |
dc.date.created | 2019-10-15 | - |
dc.date.issued | 2019-12 | - |
dc.identifier.citation | CARBON, v.155, pp.129 - 137 | - |
dc.identifier.issn | 0008-6223 | - |
dc.identifier.uri | http://hdl.handle.net/10203/268177 | - |
dc.description.abstract | Graphene-based laminate membranes have recently demonstrated unique advantages over the traditional separation membranes made of polymers or ceramics. For both gas and liquid separations, various designs of crosslinker-stabilized graphene oxide (GO) membranes have been reported. However, the preparation methods used for those are poorly scalable for industrial applications. Herein, we report the fabrication of large-area (1333 cm(2)) GO-based membranes via doctor-blade casting of gel-like slurries prepared by incorporating calcium ions (Ca2+), ferric ions (Fe3+), polyethylene oxide (PEO), or polyethyleneimine (PEI) as crosslinkers. We found that all crosslinkers tested are suitable for the gelation of dilute GO dispersions (1-5mg/mL) for doctor-blade casting. Besides, all crosslinked-GO membranes demonstrated outstanding stability under sonication compared to a GO-only membrane prepared via vacuum-assisted filtration. In aqueous nanofiltration tests, Fe3+-crosslinked GO membranes achieved virtually complete rejection of different organic dyes. PEO-crosslinked GO membranes, on the other hand, exhibited an outstanding performance for the separation of carbon dioxide (CO2) and nitrogen (N-2) gases with a CO2/N-2 selectivity of 52. Given the scaleup potential of doctor-blade casting and the practicality of crosslinking-based gelation approach, the proposed approach is promising to increase the industrial relevance of GO-based laminate membranes. (C) 2019 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Scalable fabrication of graphene-based laminate membranes for liquid and gas separations by crosslinking-induced gelation and doctor-blade casting | - |
dc.type | Article | - |
dc.identifier.wosid | 000491864400017 | - |
dc.identifier.scopusid | 2-s2.0-85071238039 | - |
dc.type.rims | ART | - |
dc.citation.volume | 155 | - |
dc.citation.beginningpage | 129 | - |
dc.citation.endingpage | 137 | - |
dc.citation.publicationname | CARBON | - |
dc.identifier.doi | 10.1016/j.carbon.2019.08.058 | - |
dc.contributor.localauthor | Bae, Tae-Hyun | - |
dc.contributor.nonIdAuthor | Yang, Euntae | - |
dc.contributor.nonIdAuthor | Karahan, H. Enis | - |
dc.contributor.nonIdAuthor | Goh, Kunli | - |
dc.contributor.nonIdAuthor | Chuah, Chong Yang | - |
dc.contributor.nonIdAuthor | Wang, Rong | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Membrane separation | - |
dc.subject.keywordAuthor | Graphene oxide | - |
dc.subject.keywordAuthor | Gelation | - |
dc.subject.keywordAuthor | Metal ions | - |
dc.subject.keywordAuthor | Polyethylene oxide | - |
dc.subject.keywordAuthor | Polyethyleneimine | - |
dc.subject.keywordPlus | OXIDE-FRAMEWORK MEMBRANES | - |
dc.subject.keywordPlus | CARBON MOLECULAR-SIEVES | - |
dc.subject.keywordPlus | POLYETHYLENEIMINE | - |
dc.subject.keywordPlus | NANOCOMPOSITE | - |
dc.subject.keywordPlus | COMPOSITE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | CAPTURE | - |
dc.subject.keywordPlus | FIBER | - |
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