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Article: Novel Au/La-SrTiO3 microspheres: Superimposed Effect of Gold Nanoparticles and Lanthanum Doping in Photocatalysis

TitleNovel Au/La-SrTiO3 microspheres: Superimposed Effect of Gold Nanoparticles and Lanthanum Doping in Photocatalysis
Authors
Keywordsgold
photocatalysis
perovskite phases
nanoparticles
doping
Issue Date2014
Citation
Chemistry - An Asian Journal, 2014, v. 9, n. 7, p. 1854-1859 How to Cite?
AbstractNovel multielement Au/La-SrTiO3 microspheres were synthesized by a solvothermal method using monodisperse gold and La-SrTiO3 nanocrystals as building blocks. The porous Au/La-SrTiO3 microspheres had a large surface area of 94.6 m2 g-1. The stable confined Au nanoparticles demonstrated strong surface plasmon resonance effect, leading to enhanced absorption in a broad UV/Vis/NIR range. Doping of rare-earth metal La also broadened the absorption band to the visible region. Both the conduction and valence bands of Au/La-SrTiO3 microspheres thus show favorable potential for proton reduction under visible light. The superimposed effect of Au nanoparticles and La doping in Au/La-SrTiO3 microspheres led to high photocurrent density in photoelectrochemical water splitting and good photocatalytic activity in photodegradation of rhodamine B. The photocatalytic activities are in the order of the following: Au/La-SrTiO 3 microspheres>Au/SrTiO3 microspheres>La-SrTiO 3 microspheres>SrTiO3 microspheres. Double up: Au/La-SrTiO3 microspheres have highly cylindrical and hierarchically mesoporous structure, affording a large surface area of 94.6 m2 g-1. They demonstrate a unique superimposed effect of Au nanoparticles and La doping, thus displaying much higher photocatalytic activity than pure SrTiO3 microspheres in both photoelectrochemical water splitting and photodegradation of rhodamine B. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Persistent Identifierhttp://hdl.handle.net/10722/237611
ISSN
2023 Impact Factor: 3.5
2023 SCImago Journal Rankings: 0.846
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Guannan-
dc.contributor.authorWang, Pei-
dc.contributor.authorLuo, He Kuan-
dc.contributor.authorAndy Hor, T. S.-
dc.date.accessioned2017-01-16T06:10:11Z-
dc.date.available2017-01-16T06:10:11Z-
dc.date.issued2014-
dc.identifier.citationChemistry - An Asian Journal, 2014, v. 9, n. 7, p. 1854-1859-
dc.identifier.issn1861-4728-
dc.identifier.urihttp://hdl.handle.net/10722/237611-
dc.description.abstractNovel multielement Au/La-SrTiO3 microspheres were synthesized by a solvothermal method using monodisperse gold and La-SrTiO3 nanocrystals as building blocks. The porous Au/La-SrTiO3 microspheres had a large surface area of 94.6 m2 g-1. The stable confined Au nanoparticles demonstrated strong surface plasmon resonance effect, leading to enhanced absorption in a broad UV/Vis/NIR range. Doping of rare-earth metal La also broadened the absorption band to the visible region. Both the conduction and valence bands of Au/La-SrTiO3 microspheres thus show favorable potential for proton reduction under visible light. The superimposed effect of Au nanoparticles and La doping in Au/La-SrTiO3 microspheres led to high photocurrent density in photoelectrochemical water splitting and good photocatalytic activity in photodegradation of rhodamine B. The photocatalytic activities are in the order of the following: Au/La-SrTiO 3 microspheres>Au/SrTiO3 microspheres>La-SrTiO 3 microspheres>SrTiO3 microspheres. Double up: Au/La-SrTiO3 microspheres have highly cylindrical and hierarchically mesoporous structure, affording a large surface area of 94.6 m2 g-1. They demonstrate a unique superimposed effect of Au nanoparticles and La doping, thus displaying much higher photocatalytic activity than pure SrTiO3 microspheres in both photoelectrochemical water splitting and photodegradation of rhodamine B. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.-
dc.languageeng-
dc.relation.ispartofChemistry - An Asian Journal-
dc.subjectgold-
dc.subjectphotocatalysis-
dc.subjectperovskite phases-
dc.subjectnanoparticles-
dc.subjectdoping-
dc.titleNovel Au/La-SrTiO3 microspheres: Superimposed Effect of Gold Nanoparticles and Lanthanum Doping in Photocatalysis-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/asia.201402007-
dc.identifier.pmid24817580-
dc.identifier.scopuseid_2-s2.0-84903210513-
dc.identifier.volume9-
dc.identifier.issue7-
dc.identifier.spage1854-
dc.identifier.epage1859-
dc.identifier.eissn1861-471X-
dc.identifier.isiWOS:000338017800017-
dc.identifier.issnl1861-471X-

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