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Article: Effect of native defects on photocatalytic properties of ZnO

TitleEffect of native defects on photocatalytic properties of ZnO
Authors
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/
Citation
Journal Of Physical Chemistry C, 2011, v. 115 n. 22, p. 11095-11101 How to Cite?
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.
Persistent Identifierhttp://hdl.handle.net/10722/135373
ISSN
2014 Impact Factor: 4.772
References

 

DC FieldValueLanguage
dc.contributor.authorGuo, MYen_HK
dc.contributor.authorNg, AMCen_HK
dc.contributor.authorLiu, Fen_HK
dc.contributor.authorDjuriŝić, ABen_HK
dc.contributor.authorChan, WKen_HK
dc.contributor.authorSu, Hen_HK
dc.contributor.authorWong, KSen_HK
dc.date.accessioned2011-07-27T01:34:14Z-
dc.date.available2011-07-27T01:34:14Z-
dc.date.issued2011en_HK
dc.identifier.citationJournal Of Physical Chemistry C, 2011, v. 115 n. 22, p. 11095-11101en_HK
dc.identifier.issn1932-7447en_HK
dc.identifier.urihttp://hdl.handle.net/10722/135373-
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.en_HK
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jpccck/en_HK
dc.relation.ispartofJournal of Physical Chemistry Cen_HK
dc.subjectPhoto-catalytic-
dc.subjectReactive oxygen species-
dc.subjectNanoparticles-
dc.subjectPhotoluminescence-
dc.subjectZinc oxide-
dc.titleEffect of native defects on photocatalytic properties of ZnOen_HK
dc.typeArticleen_HK
dc.identifier.emailDjuriŝić, AB: dalek@hku.hken_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.authorityDjuriŝić, AB=rp00690en_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jp200926uen_HK
dc.identifier.scopuseid_2-s2.0-79958748587en_HK
dc.identifier.hkuros186873en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79958748587&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume115en_HK
dc.identifier.issue22en_HK
dc.identifier.spage11095en_HK
dc.identifier.epage11101en_HK
dc.identifier.eissn1932-7455-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridGuo, MY=41761700900en_HK
dc.identifier.scopusauthoridNg, AMC=12140078600en_HK
dc.identifier.scopusauthoridLiu, F=24778556400en_HK
dc.identifier.scopusauthoridDjuriŝić, AB=7004904830en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK
dc.identifier.scopusauthoridSu, H=41762946200en_HK
dc.identifier.scopusauthoridWong, KS=7404759949en_HK

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