DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, W | - |
dc.contributor.author | Tachikawa, T | - |
dc.contributor.author | Kim, H | - |
dc.contributor.author | Lakshminarasimhan, N | - |
dc.contributor.author | Murugan, P | - |
dc.contributor.author | Park, H | - |
dc.contributor.author | Majima, T | - |
dc.contributor.author | Choi, W | - |
dc.date.accessioned | 2016-03-31T08:19:29Z | - |
dc.date.available | 2016-03-31T08:19:29Z | - |
dc.date.created | 2014-02-11 | - |
dc.date.issued | 2014-04-05 | - |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.other | 2014-OAK-0000028769 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/15052 | - |
dc.description.abstract | The visible light photocatalytic activity of nitrogen doped TiO2 (N-TiO2) was enhanced with co-doping of Pt ions for the oxidative and reductive degradation of model substrates in gaseous and aqueous phases. The synthesized samples were characterized by various techniques (diffuse reflectance UV-Vis, XPS, XRD, FT-IR, HR-TEM, EDX and laser flash photolysis spectroscopy). The co-doping of N and Pt of TiO2 (Pt,N-TiO2) significantly enhanced the degradation of acetaldehyde (gas phase), and trichloroacetate (TCA) (aqueous phase), and the reduction of Cr(VI) (aqueous phase) under visible light (lambda > 420 nm). The observed visible light photocatalytic activity of Pt,N-TiO2 was markedly higher than the singly-doped TiO2 (Pt-TiO2 or N-TiO2). A time-resolved diffuse reflectance (TDR) study found that the presence of the different oxidation states of Pt (2+ and 4+) plays a crucial role in the charge trapping and transfer dynamics in Pt-TiO2. The TDR study of Pt,N-TiO2 further revealed that the synergistic effect of co-doping is attributed to the combined contribution of each dopant. Finally, the first principle calculations for the doped TiO2 suggested that the electronic interaction of Pt and N in TiO2 facilitates the charge carrier mobility and reduces the undesired recombination, leading to enhanced photocatalytic activity. (C) 2013 Elsevier B.V. All rights reserved. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.relation.isPartOf | APPLIED CATALYSIS B-ENVIRONMENTAL | - |
dc.subject | Visible light photocatalysis | - |
dc.subject | Titanium dioxide | - |
dc.subject | Dopants | - |
dc.subject | Band structure | - |
dc.subject | Photooxidation and photoreduction | - |
dc.subject | CODOPED TIO2 | - |
dc.subject | ENVIRONMENTAL APPLICATIONS | - |
dc.subject | SURFACE FLUORINATION | - |
dc.subject | TITANIUM-DIOXIDE | - |
dc.subject | ABSORPTION | - |
dc.subject | MECHANISM | - |
dc.subject | NANOPARTICLES | - |
dc.subject | SPECTROSCOPY | - |
dc.subject | DEGRADATION | - |
dc.subject | OXIDATION | - |
dc.title | Visible Light Photocatalytic Activities of Nitrogen and Platinum-Doped TiO2: Synergistic Effects of Co-dopants | - |
dc.type | Article | - |
dc.contributor.college | 환경공학부 | - |
dc.identifier.doi | 10.1016/J.APCATB.2013.09.034 | - |
dc.author.google | Kim W., Tachikawa T., Kim H., Lakshminarasimhan N., Murugan P., Park H., Majima T., Choi W. | - |
dc.relation.volume | 147 | - |
dc.relation.startpage | 642 | - |
dc.relation.lastpage | 650 | - |
dc.contributor.id | 10105056 | - |
dc.relation.journal | APPLIED CATALYSIS B-ENVIRONMENTAL | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | APPLIED CATALYSIS B-ENVIRONMENTAL, v.147, pp.642 - 650 | - |
dc.identifier.wosid | 000330489400070 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 650 | - |
dc.citation.startPage | 642 | - |
dc.citation.title | APPLIED CATALYSIS B-ENVIRONMENTAL | - |
dc.citation.volume | 147 | - |
dc.contributor.affiliatedAuthor | Choi, W | - |
dc.identifier.scopusid | 2-s2.0-84886258322 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 45 | - |
dc.description.scptc | 43 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | CODOPED TIO2 | - |
dc.subject.keywordPlus | ENVIRONMENTAL APPLICATIONS | - |
dc.subject.keywordPlus | SURFACE FLUORINATION | - |
dc.subject.keywordPlus | TITANIUM-DIOXIDE | - |
dc.subject.keywordPlus | ABSORPTION | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordAuthor | Visible light photocatalysis | - |
dc.subject.keywordAuthor | Titanium dioxide | - |
dc.subject.keywordAuthor | Dopants | - |
dc.subject.keywordAuthor | Band structure | - |
dc.subject.keywordAuthor | Photooxidation and photoreduction | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Engineering | - |
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