Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2

Handle URI:
http://hdl.handle.net/10754/334595
Title:
Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2
Authors:
Waterhouse, G. I. N.; Wahab, A. K.; Al-Oufi, M.; Jovic, V.; Anjum, Dalaver H.; Sun-Waterhouse, D.; Llorca, J.; Idriss, H.
Abstract:
Tuning the photonic band gap (PBG) to the electronic band gap (EBG) of Au/TiO<inf>2</inf> catalysts resulted in considerable enhancement of the photocatalytic water splitting to hydrogen under direct sunlight. Au/TiO<inf>2</inf> (PBG-357 nm) photocatalyst exhibited superior photocatalytic performance under both UV and sunlight compared to the Au/TiO<inf>2</inf> (PBG-585 nm) photocatalyst and both are higher than Au/TiO<inf>2</inf> without the 3 dimensionally ordered macro-porous structure materials. The very high photocatalytic activity is attributed to suppression of a fraction of electron-hole recombination route due to the co-incidence of the PBG with the EBG of TiO<inf>2</inf> These materials that maintain their activity with very small amount of sacrificial agents (down to 0.5 vol.% of ethanol) are poised to find direct applications because of their high activity, low cost of the process, simplicity and stability.
KAUST Department:
SABIC Research Centres, Riyadh and KAUST, Saudi Arabia and the University of Aberdeen (UK); KAUST
Citation:
Waterhouse GIN, Wahab AK, Al-Oufi M, Jovic V, Anjum DH, et al. (2013) Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2. Sci Rep 3. doi:10.1038/srep02849.
Publisher:
Nature Publishing Group
Journal:
Scientific Reports
Issue Date:
10-Oct-2013
DOI:
10.1038/srep02849
PubMed ID:
24108361
PubMed Central ID:
PMC3794377
Type:
Article
ISSN:
2045-2322
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorWaterhouse, G. I. N.en
dc.contributor.authorWahab, A. K.en
dc.contributor.authorAl-Oufi, M.en
dc.contributor.authorJovic, V.en
dc.contributor.authorAnjum, Dalaver H.en
dc.contributor.authorSun-Waterhouse, D.en
dc.contributor.authorLlorca, J.en
dc.contributor.authorIdriss, H.en
dc.date.accessioned2014-11-11T14:31:19Z-
dc.date.available2014-11-11T14:31:19Z-
dc.date.issued2013-10-10en
dc.identifier.citationWaterhouse GIN, Wahab AK, Al-Oufi M, Jovic V, Anjum DH, et al. (2013) Hydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2. Sci Rep 3. doi:10.1038/srep02849.en
dc.identifier.issn2045-2322en
dc.identifier.pmid24108361en
dc.identifier.doi10.1038/srep02849en
dc.identifier.urihttp://hdl.handle.net/10754/334595en
dc.description.abstractTuning the photonic band gap (PBG) to the electronic band gap (EBG) of Au/TiO<inf>2</inf> catalysts resulted in considerable enhancement of the photocatalytic water splitting to hydrogen under direct sunlight. Au/TiO<inf>2</inf> (PBG-357 nm) photocatalyst exhibited superior photocatalytic performance under both UV and sunlight compared to the Au/TiO<inf>2</inf> (PBG-585 nm) photocatalyst and both are higher than Au/TiO<inf>2</inf> without the 3 dimensionally ordered macro-porous structure materials. The very high photocatalytic activity is attributed to suppression of a fraction of electron-hole recombination route due to the co-incidence of the PBG with the EBG of TiO<inf>2</inf> These materials that maintain their activity with very small amount of sacrificial agents (down to 0.5 vol.% of ethanol) are poised to find direct applications because of their high activity, low cost of the process, simplicity and stability.en
dc.language.isoenen
dc.publisherNature Publishing Groupen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/en
dc.titleHydrogen production by Tuning the Photonic Band Gap with the Electronic Band Gap of TiO2en
dc.typeArticleen
dc.contributor.departmentSABIC Research Centres, Riyadh and KAUST, Saudi Arabia and the University of Aberdeen (UK)en
dc.contributor.departmentKAUSTen
dc.identifier.journalScientific Reportsen
dc.identifier.pmcidPMC3794377en
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionSchool of Chemical Sciences, University of Aucklanden
dc.contributor.institutionInstitute of Energy Technologies and Centre for Research in NanoEngineering, Technical University of Cataloniaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAnjum, Dalaver H.en
kaust.authorWahab, A. K.en
kaust.authorAl-Oufi, M.en
kaust.authorIdriss, H.en
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