Synthesis of plasmonic Ag@SnO2 core-shell nanoreactors for xylene detection
DC Field | Value | Language |
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dc.contributor.author | Rai, Prabhakar | - |
dc.contributor.author | Majhi, Sanjit Manohar | - |
dc.contributor.author | Yu, Yeon-Tae | - |
dc.contributor.author | Lee, Jong-Heun | - |
dc.date.accessioned | 2021-09-05T01:02:25Z | - |
dc.date.available | 2021-09-05T01:02:25Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2015 | - |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/96249 | - |
dc.description.abstract | Ag@SnO2 core-shell nanoparticles (NPs) were prepared by a microwave-assisted hydrothermal method. The Ag NPs were synthesized by colloidal method and their size (10-24 nm) was controlled by the amount of reducing and stabilizing agents added. The size of Ag NPs was increased and subsequently their surface plasmon (SP) band was red-shifted with increasing reducing agent amount. A SnO2 NP shell was deposited on Ag NPs by microwave-assisted hydrothermal method. The size of Ag@SnO2 core-shell NPs was within 50 nm in diameter, which was composed of 15-18 nm Ag NPs and a 10-15 nm SnO2 shell. The SP band of Ag NPs was red-shifted with SnO2 shell formation. Ag@SnO2 core-shell NPs showed higher response to p-xylene as compared to other interfering gases (NO2, HCHO, CO and H-2). The maximum response of Ag@SnO2 core-shell NPs to 5 ppm p-xylene was 16.17, whereas the maximum response of bare SnO2 was 10.79 to 5 ppm H-2. The response of Ag@SnO2 core-shell NPs to 5 ppm p-xylene was approximately 7 times higher than that of bare SnO2 NPs. The improved gas sensing performance of Ag@SnO2 core-shell NPs was attributed to the electronic as well as catalytic activity of Ag NPs. It was proposed that the selective detection of p-xylene was attributed to the effective inwards diffusion of p-xylene through SnO2 shells and their subsequent dissociation into smaller and more active species by Ag NP catalysts on the inner part of the SnO2 shell. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | ASSISTED HYDROTHERMAL SYNTHESIS | - |
dc.subject | POTENTIAL BARRIER MODULATION | - |
dc.subject | SENSITIVE DETECTION | - |
dc.subject | METAL-OXIDES | - |
dc.subject | GAS SENSORS | - |
dc.subject | NANOPARTICLES | - |
dc.subject | WO3 | - |
dc.subject | NANOSTRUCTURES | - |
dc.subject | HETEROJUNCTION | - |
dc.subject | SELECTIVITY | - |
dc.title | Synthesis of plasmonic Ag@SnO2 core-shell nanoreactors for xylene detection | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jong-Heun | - |
dc.identifier.doi | 10.1039/c4ra13971b | - |
dc.identifier.scopusid | 2-s2.0-84923165763 | - |
dc.identifier.wosid | 000349557400037 | - |
dc.identifier.bibliographicCitation | RSC ADVANCES, v.5, no.23, pp.17653 - 17659 | - |
dc.relation.isPartOf | RSC ADVANCES | - |
dc.citation.title | RSC ADVANCES | - |
dc.citation.volume | 5 | - |
dc.citation.number | 23 | - |
dc.citation.startPage | 17653 | - |
dc.citation.endPage | 17659 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | ASSISTED HYDROTHERMAL SYNTHESIS | - |
dc.subject.keywordPlus | POTENTIAL BARRIER MODULATION | - |
dc.subject.keywordPlus | SENSITIVE DETECTION | - |
dc.subject.keywordPlus | METAL-OXIDES | - |
dc.subject.keywordPlus | GAS SENSORS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | WO3 | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | HETEROJUNCTION | - |
dc.subject.keywordPlus | SELECTIVITY | - |
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