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Article: Effect of native defects on photocatalytic properties of ZnO
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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
2012 Impact Factor: 4.814
2012 SCImago Journal Rankings: 2.161
 
DOIhttp://dx.doi.org/10.1021/jp200926u
 
ReferencesReferences in Scopus
 
DC FieldValue
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.eissn1932-7455
 
dc.identifier.epage11101
 
dc.identifier.hkuros186873
 
dc.identifier.issn1932-7447
2012 Impact Factor: 4.814
2012 SCImago Journal Rankings: 2.161
 
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
 
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<contributor.author>Chan, WK</contributor.author>
<contributor.author>Su, H</contributor.author>
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Author Affiliations
  1. The University of Hong Kong
  2. Hong Kong University of Science and Technology