Cubic-shape hematite decorated with plasmonic Ag-Au bimetals for enhanced photocatalysis under visible light irradiation
DC Field | Value | Language |
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dc.contributor.author | Park, S.H. | - |
dc.contributor.author | Jung, W.-S. | - |
dc.contributor.author | Kadam, A.N. | - |
dc.contributor.author | Lee, S.-W. | - |
dc.date.available | 2020-10-21T04:40:14Z | - |
dc.date.created | 2020-10-21 | - |
dc.date.issued | 2020-09 | - |
dc.identifier.issn | 2053-1591 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/78701 | - |
dc.description.abstract | Cubic-shape hematite (C-Fe2O3) was facilely prepared by hydrothermal autoclave reaction of Fe3+ in the presence of 1,12-diaminododecane at 130 °C for 10 h. The surface of C-Fe2O3 was decorated with nanosilvers through the sonochemical reduction of Ag precursor (0.1-0.4 ml of 1.0 wt.% AgNO3), so-called C-Fe2O3@Ag. After then, the C-Fe2O3@Ag was plated with Au layer via galvanic-assisted reduction of Au precursor (0.04-0.14 ml of 1.0 wt.% HAuCl4), so-called C-Fe2O3@Ag-Au. Scanning electron microscopy demonstrated the formation of cubic-shape hematite deposited with plasmonic nanometals. X-ray photoelectron spectroscopy analysis confirmed the existence of Ag and Au crystals. Photocatalytic performance of the hematite samples was estimated towards the degradation of methylene blue (MB) under visible light. The C-Fe2O3@Ag (0.2 ml) exhibited the five-fold increase of photocatalytic activity to that of the pristine C-Fe2O3. Furthermore, Au-deposited C-Fe2O3@Ag (0.2 ml), i.e., C-Fe2O3@Ag-Au, exhibited the 200% increase of photocatalytic activity to that of the C-Fe2O3@Ag (0.2 ml), owing to the plasmonic coupling effect on the extended visible light absorbance and enhanced separation efficiency of electron-hole pairs on the hematite surface. © 2020 The Author(s). Published by IOP Publishing Ltd | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | IOP Publishing Ltd | - |
dc.relation.isPartOf | Materials Research Express | - |
dc.title | Cubic-shape hematite decorated with plasmonic Ag-Au bimetals for enhanced photocatalysis under visible light irradiation | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000576030700001 | - |
dc.identifier.doi | 10.1088/2053-1591/abb90c | - |
dc.identifier.bibliographicCitation | Materials Research Express, v.7, no.9 | - |
dc.identifier.scopusid | 2-s2.0-85092435901 | - |
dc.citation.title | Materials Research Express | - |
dc.citation.volume | 7 | - |
dc.citation.number | 9 | - |
dc.contributor.affiliatedAuthor | Park, S.H. | - |
dc.contributor.affiliatedAuthor | Jung, W.-S. | - |
dc.contributor.affiliatedAuthor | Kadam, A.N. | - |
dc.contributor.affiliatedAuthor | Lee, S.-W. | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Au-Ag bimetal | - |
dc.subject.keywordAuthor | Cubic-shape | - |
dc.subject.keywordAuthor | Hematite | - |
dc.subject.keywordAuthor | Plasmonic | - |
dc.subject.keywordAuthor | Visible light | - |
dc.subject.keywordPlus | Aromatic compounds | - |
dc.subject.keywordPlus | Binary alloys | - |
dc.subject.keywordPlus | Gold alloys | - |
dc.subject.keywordPlus | Gold deposits | - |
dc.subject.keywordPlus | Gold metallography | - |
dc.subject.keywordPlus | Hematite | - |
dc.subject.keywordPlus | Light | - |
dc.subject.keywordPlus | Photocatalytic activity | - |
dc.subject.keywordPlus | Plasmonics | - |
dc.subject.keywordPlus | Scanning electron microscopy | - |
dc.subject.keywordPlus | Silver alloys | - |
dc.subject.keywordPlus | Silver compounds | - |
dc.subject.keywordPlus | X ray photoelectron spectroscopy | - |
dc.subject.keywordPlus | 1 ,12-diaminododecane | - |
dc.subject.keywordPlus | Electron hole pairs | - |
dc.subject.keywordPlus | Hydrothermal autoclaves | - |
dc.subject.keywordPlus | Photocatalytic performance | - |
dc.subject.keywordPlus | Separation efficiency | - |
dc.subject.keywordPlus | Sonochemical reduction | - |
dc.subject.keywordPlus | Visible-light absorbance | - |
dc.subject.keywordPlus | Visible-light irradiation | - |
dc.subject.keywordPlus | Silver metallography | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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