DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Gonu | ko |
dc.contributor.author | Choi, Hee Joon | ko |
dc.contributor.author | Kim, Hyoung-il | ko |
dc.contributor.author | Kim, Jaehong | ko |
dc.contributor.author | Monllor-Satoca, Damian | ko |
dc.contributor.author | Kim, Minju | ko |
dc.contributor.author | Park, Hyunwoong | ko |
dc.date.accessioned | 2016-12-01T08:10:11Z | - |
dc.date.available | 2016-12-01T08:10:11Z | - |
dc.date.created | 2016-11-28 | - |
dc.date.created | 2016-11-28 | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, v.15, no.10, pp.1247 - 1253 | - |
dc.identifier.issn | 1474-905X | - |
dc.identifier.uri | http://hdl.handle.net/10203/214658 | - |
dc.description.abstract | This study investigates the effect of reaction temperature (298-353 K) on photocatalytic H-2 production in bare and platinized TiO2 (Pt/TiO2) suspensions containing various organic hole scavengers (EDTA, methanol, and formic acid) under UV (lambda> 320 nm) and visible light (lambda > 420 nm for ligand-to-metal charge transfer). H-2 production rates are enhanced similar to 7.8- and similar to 2.5-fold in TiO2 and Pt/TiO2 suspensions, respectively, with EDTA under UV by simply elevating the reaction temperature from 298 K to 323 K (Delta T = 25 degrees C). Such a temperature-boosted increase in H-2 production is always observed, regardless of the TiO2 crystalline structure (anatase, rutile, and an anatase/rutile mixture), type of hole scavenger, and irradiation wavelength range. It is estimated that approximately 90% of incident photons are utilized in H-2 production, for which the activation energy is 25.5 kJ mol(-1). Detailed photoelectrochemical analyses show the positive relationship between reaction temperature and photocurrent generation, with charge carrier mobility and interfacial charge transfer improving at higher temperatures. Other possible factors, such as H-2 solubility and mass transport, play a limited role | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | PHOTOELECTROCHEMICAL WATER OXIDATION | - |
dc.subject | HETEROJUNCTION | - |
dc.subject | ELECTRODES | - |
dc.subject | BIVO4 | - |
dc.subject | NANOPARTICLES | - |
dc.subject | DEGRADATION | - |
dc.subject | PT/TIO2 | - |
dc.subject | VAPOR | - |
dc.subject | O-2 | - |
dc.subject | WO3 | - |
dc.title | Temperature-boosted photocatalytic H-2 production and charge transfer kinetics on TiO2 under UV and visible light | - |
dc.type | Article | - |
dc.identifier.wosid | 000386697600004 | - |
dc.identifier.scopusid | 2-s2.0-84990247182 | - |
dc.type.rims | ART | - |
dc.citation.volume | 15 | - |
dc.citation.issue | 10 | - |
dc.citation.beginningpage | 1247 | - |
dc.citation.endingpage | 1253 | - |
dc.citation.publicationname | PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES | - |
dc.identifier.doi | 10.1039/c6pp00263c | - |
dc.contributor.nonIdAuthor | Choi, Hee Joon | - |
dc.contributor.nonIdAuthor | Kim, Hyoung-il | - |
dc.contributor.nonIdAuthor | Kim, Jaehong | - |
dc.contributor.nonIdAuthor | Monllor-Satoca, Damian | - |
dc.contributor.nonIdAuthor | Kim, Minju | - |
dc.contributor.nonIdAuthor | Park, Hyunwoong | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | PHOTOELECTROCHEMICAL WATER OXIDATION | - |
dc.subject.keywordPlus | HETEROJUNCTION | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | BIVO4 | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | PT/TIO2 | - |
dc.subject.keywordPlus | VAPOR | - |
dc.subject.keywordPlus | O-2 | - |
dc.subject.keywordPlus | WO3 | - |
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