DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Dae Woo | ko |
dc.contributor.author | Jang, Jidon | ko |
dc.contributor.author | Kim, In | ko |
dc.contributor.author | Nam, Yoon Tae | ko |
dc.contributor.author | Jung, Yousung | ko |
dc.contributor.author | Jung, Hee-Tae | ko |
dc.date.accessioned | 2018-08-21T04:39:58Z | - |
dc.date.available | 2018-08-21T04:39:58Z | - |
dc.date.created | 2018-08-20 | - |
dc.date.created | 2018-08-20 | - |
dc.date.created | 2018-08-20 | - |
dc.date.issued | 2018-08 | - |
dc.identifier.citation | JOURNAL OF PHYSICAL CHEMISTRY C, v.122, no.30, pp.17507 - 17517 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | http://hdl.handle.net/10203/245181 | - |
dc.description.abstract | A combined experimental and molecular dynamics study revealed the role of oxygen debris (ODs) and functional groups on the nanofiltration performance of a graphene oxide (GO) membrane. A NaOH treatment removed ODs adsorbed onto the graphene oxide (DGO). COOH-decorated GO (CGO) was prepared by controlling the oxidation time of Hummer's method, resulting in 45% of carbons with a COOH group. The water permeance of the prepared GO membrane without ODs was 1 order of magnitude greater than that of GO membranes in our experiments: 1.24, 1.59, and 14.7 L m(-2) h(-1) bar(-1) for GO, CGO, and DGO. However, the rejection of dye molecules below 1 nm in size was dramatically reduced without ODs, indicating that ODs play a critical role in rejecting molecules below 1 nm in size because of electrostatic and hydrogen bonding interactions and by narrowing the effective interlayer spacing, as noted in molecular simulations. Additionally, the CGO membrane displayed a similar separation performance compared to common GO membrane mainly decorated with OH and epoxy. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | NANOFILTRATION MEMBRANES | - |
dc.subject | CARBON NANOTUBES | - |
dc.subject | OXIDATION DEBRIS | - |
dc.subject | FILMS | - |
dc.subject | PERMEATION | - |
dc.subject | CHEMISTRY | - |
dc.subject | REJECTION | - |
dc.subject | TRANSPORT | - |
dc.subject | DENSITY | - |
dc.title | Revealing the Role of Oxygen Debris and Functional Groups on the Water Flux and Molecular Separation of Graphene Oxide Membrane: A Combined Experimental and Theoretical Study | - |
dc.type | Article | - |
dc.identifier.wosid | 000440956200055 | - |
dc.identifier.scopusid | 2-s2.0-85049879800 | - |
dc.type.rims | ART | - |
dc.citation.volume | 122 | - |
dc.citation.issue | 30 | - |
dc.citation.beginningpage | 17507 | - |
dc.citation.endingpage | 17517 | - |
dc.citation.publicationname | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.identifier.doi | 10.1021/acs.jpcc.8b03318 | - |
dc.contributor.localauthor | Jung, Yousung | - |
dc.contributor.localauthor | Jung, Hee-Tae | - |
dc.contributor.nonIdAuthor | Nam, Yoon Tae | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | NANOFILTRATION MEMBRANES | - |
dc.subject.keywordPlus | CARBON NANOTUBES | - |
dc.subject.keywordPlus | OXIDATION DEBRIS | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | PERMEATION | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordPlus | REJECTION | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | DENSITY | - |
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