DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, CS | - |
dc.contributor.author | Gong, J | - |
dc.contributor.author | Huong, CV | - |
dc.contributor.author | Oh, DS | - |
dc.contributor.author | Chang, YS | - |
dc.date.accessioned | 2017-07-19T13:33:01Z | - |
dc.date.available | 2017-07-19T13:33:01Z | - |
dc.date.created | 2017-02-16 | - |
dc.date.issued | 2016-08-15 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/37210 | - |
dc.description.abstract | The agglomeration of zero-valent iron nanoparticles (Fe-0 NPs) can significantly decrease the effective surface area of nanoparticles and thus reduce their catalytic performance. To avoid such agglomeration, a two-part Fe-0 NP-immobilization approach was developed: (1) The fabrication of a macroporous alginate substrate (MAS) that provided a large surface area capable of sustaining a high load of stable and well-dispersed Fe-0 NPs (26.06 wt.%). (2) A facile chemical reductive growth procedure to generate Fe-0 NPs (ca. 50-100 nm) that are covalently anchored to the surface of the MAS. The macroporous alginate substrate-supported Fe-0 nanoparticles (Fe-0 NPs/MAS) removed >96.5% of nitrates from an aqueous solution within 30 min, whereas unsupported Fe-0 NPs removed only 44.7% of nitrates over a longer period of time. These results demonstrate that MAS acts in a way to prevent the agglomeration of Fe-0 NPs and, in turn, to promote their redox activity compared to unsupported Fe-0 NPs. On the basis of our experimental results, a grow mechanism of Fe-0 NPs on the MAS was proposed, and potential implications for environmental applications of Fe-0 NPs/MAS were discussed. (C) 2016 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.relation.isPartOf | Chemical Engineering Journal | - |
dc.title | Macroporous Alginate Substrate-Bound Growth of Fe0 Nanoparticles with High Redox Activities for Nitrate Removal from Aqueous Solutions | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/J.CEJ.2016.03.113 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Chemical Engineering Journal, v.298, pp.206 - 213 | - |
dc.identifier.wosid | 000377309800022 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 213 | - |
dc.citation.startPage | 206 | - |
dc.citation.title | Chemical Engineering Journal | - |
dc.citation.volume | 298 | - |
dc.contributor.affiliatedAuthor | Chang, YS | - |
dc.identifier.scopusid | 2-s2.0-84964372787 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 13 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ZERO-VALENT IRON | - |
dc.subject.keywordPlus | MAGNETIC NANOPARTICLES | - |
dc.subject.keywordPlus | TCE DECHLORINATION | - |
dc.subject.keywordPlus | MESOPOROUS SILICA | - |
dc.subject.keywordPlus | SUPPORTED NZVI | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | AGGREGATION | - |
dc.subject.keywordPlus | GROUNDWATER | - |
dc.subject.keywordPlus | REACTIVITY | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordAuthor | Alginate | - |
dc.subject.keywordAuthor | Nanoscale zero-valent iron | - |
dc.subject.keywordAuthor | Nitrate | - |
dc.subject.keywordAuthor | Reductive growth | - |
dc.subject.keywordAuthor | Agglomeration | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
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