Article: Effect of native defects on photocatalytic properties of ZnO

File Download Links for fulltext
(May Require Subscription)
Supplementary
  • Basic View
  • Metadata View
  • XML View
TitleEffect of native defects on photocatalytic properties of ZnO
AuthorsGuo, MY1
Ng, AMC1
Liu, F1
Djuriŝić, AB1
Chan, WK1
Su, H2
Wong, KS2
KeywordsPhoto-catalytic
Reactive oxygen species
Nanoparticles
Photoluminescence
Zinc oxide
Issue Date2011
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jpccck/
CitationJournal Of Physical Chemistry C, 2011, v. 115 n. 22, p. 11095-11101 [How to Cite?]
DOI: http://dx.doi.org/10.1021/jp200926u
AbstractWe have studied the photocatalytic activity of ZnO tetrapods, ZnO powder, and different ZnO nanoparticles. While nanoparticles with small particle size exhibited higher Brunauer-Emmett-Teller (BET) surface area, tetrapods exhibited significantly higher photocatalytic activity for degradation of different dyes. Degradation of four different dyes has been achieved for at least 5 times shorter time for tetrapods compared to nanoparticles (20 nm average particle size). Different ZnO samples have been characterized by variableerature photoluminescence and time-resolved photoluminescence measurements, and the relationship between optical properties, native defects, production of the reactive oxygen species, and photocatalytic dye degradation has been discussed. © 2011 American Chemical Society.
ISSN1932-7447
2011 Impact Factor: 4.805
2011 SCImago Journal Rankings: 0.435
DOIhttp://dx.doi.org/10.1021/jp200926u
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorGuo, MY
dc.contributor.authorNg, AMC
dc.contributor.authorLiu, F
dc.contributor.authorDjuriŝić, AB
dc.contributor.authorChan, WK
dc.contributor.authorSu, H
dc.contributor.authorWong, KS
dc.date.accessioned2011-07-27T01:34:14Z
dc.date.available2011-07-27T01:34:14Z
dc.date.issued2011
dc.description.abstractWe have studied the photocatalytic activity of ZnO tetrapods, ZnO powder, and different ZnO nanoparticles. While nanoparticles with small particle size exhibited higher Brunauer-Emmett-Teller (BET) surface area, tetrapods exhibited significantly higher photocatalytic activity for degradation of different dyes. Degradation of four different dyes has been achieved for at least 5 times shorter time for tetrapods compared to nanoparticles (20 nm average particle size). Different ZnO samples have been characterized by variableerature photoluminescence and time-resolved photoluminescence measurements, and the relationship between optical properties, native defects, production of the reactive oxygen species, and photocatalytic dye degradation has been discussed. © 2011 American Chemical Society.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationJournal Of Physical Chemistry C, 2011, v. 115 n. 22, p. 11095-11101 [How to Cite?]
DOI: http://dx.doi.org/10.1021/jp200926u
dc.identifier.doihttp://dx.doi.org/10.1021/jp200926u
dc.identifier.epage11101
dc.identifier.hkuros186873
dc.identifier.issn1932-7447
2011 Impact Factor: 4.805
2011 SCImago Journal Rankings: 0.435
dc.identifier.issue22
dc.identifier.scopuseid_2-s2.0-79958748587
dc.identifier.spage11095
dc.identifier.urihttp://hdl.handle.net/10722/135373
dc.identifier.volume115
dc.languageeng
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jpccck/
dc.publisher.placeUnited States
dc.relation.ispartofJournal of Physical Chemistry C
dc.relation.referencesReferences in Scopus
dc.subjectPhoto-catalytic
dc.subjectReactive oxygen species
dc.subjectNanoparticles
dc.subjectPhotoluminescence
dc.subjectZinc oxide
dc.titleEffect of native defects on photocatalytic properties of ZnO
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Hong Kong University of Science and Technology