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Article: TiO2-carbon nanotube composites for visible photocatalysts - Influence of TiO2 crystal structure

TitleTiO2-carbon nanotube composites for visible photocatalysts - Influence of TiO2 crystal structure
Authors
KeywordsCarbon Nanotube Composites
Photocatalysis
Tio2
Issue Date2013
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/cap
Citation
Current Applied Physics, 2013, v. 13 n. 7, p. 1280-1287 How to Cite?
AbstractWe investigated the influence of the crystal structure of TiO2 and the use of different TiO2 precursors on the properties and photocatalytic activity of carbon nanotube (CNTs)-titania composites. We found that the crystal structure and properties of starting TiO2 nanomaterial significantly affected the effect of CNTs incorporation on the photocatalytic activity under simulated solar and visible light illumination (simulated solar illumination with UV-blocking filter). In case of significant photocatalytic activity under visible light illumination (anatase TiO2), likely due to the presence of native defects, composites exhibited lower activity under visible illumination only, but higher activity under simulated solar illumination. The opposite trends were observed for P25 (anatase + rutile) and rutile TiO2, where incorporation of CNTs resulted in a significant increase of photocatalytic activity under visible illumination. Thus, control over crystal structure and native defects is essential for the development of efficient visible light activated photocatalysts. © 2013 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/185483
ISSN
2015 Impact Factor: 2.144
2015 SCImago Journal Rankings: 0.716
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGuo, MYen_US
dc.contributor.authorLiu, Fen_US
dc.contributor.authorLeung, YHen_US
dc.contributor.authorNg, AMCen_US
dc.contributor.authorDjurišić, ABen_US
dc.contributor.authorChan, WKen_US
dc.date.accessioned2013-07-30T07:36:52Z-
dc.date.available2013-07-30T07:36:52Z-
dc.date.issued2013en_US
dc.identifier.citationCurrent Applied Physics, 2013, v. 13 n. 7, p. 1280-1287en_US
dc.identifier.issn1567-1739en_US
dc.identifier.urihttp://hdl.handle.net/10722/185483-
dc.description.abstractWe investigated the influence of the crystal structure of TiO2 and the use of different TiO2 precursors on the properties and photocatalytic activity of carbon nanotube (CNTs)-titania composites. We found that the crystal structure and properties of starting TiO2 nanomaterial significantly affected the effect of CNTs incorporation on the photocatalytic activity under simulated solar and visible light illumination (simulated solar illumination with UV-blocking filter). In case of significant photocatalytic activity under visible light illumination (anatase TiO2), likely due to the presence of native defects, composites exhibited lower activity under visible illumination only, but higher activity under simulated solar illumination. The opposite trends were observed for P25 (anatase + rutile) and rutile TiO2, where incorporation of CNTs resulted in a significant increase of photocatalytic activity under visible illumination. Thus, control over crystal structure and native defects is essential for the development of efficient visible light activated photocatalysts. © 2013 Elsevier B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/capen_US
dc.relation.ispartofCurrent Applied Physicsen_US
dc.subjectCarbon Nanotube Compositesen_US
dc.subjectPhotocatalysisen_US
dc.subjectTio2en_US
dc.titleTiO2-carbon nanotube composites for visible photocatalysts - Influence of TiO2 crystal structureen_US
dc.typeArticleen_US
dc.identifier.emailDjurišić, AB: dalek@hku.hken_US
dc.identifier.emailChan, WK: waichan@hku.hken_US
dc.identifier.authorityDjurišić, AB=rp00690en_US
dc.identifier.authorityChan, WK=rp00667en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.cap.2013.03.022en_US
dc.identifier.scopuseid_2-s2.0-84885637516en_US
dc.identifier.hkuros219353-
dc.identifier.isiWOS:000322631400020-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridGuo, MY=55598690500en_US
dc.identifier.scopusauthoridLiu, F=55599086400en_US
dc.identifier.scopusauthoridLeung, YH=55440652500en_US
dc.identifier.scopusauthoridNg, AMC=55549733500en_US
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_US
dc.identifier.scopusauthoridChan, WK=13310083000en_US

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