Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 Perovskite

Detalhes bibliográficos
Autor(a) principal: Moura,Kleber Figueiredo
Data de Publicação: 2017
Outros Autores: Chantelle,Laís, Rosendo,Débora, Longo,Elson, Santos,Ieda Maria Garcia dos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800317
Resumo: In the last ten years, stannates with perovskite structure have been tested as photocatalysts. In spite of the ability of perovskite materials to accommodate different cations in its structure, evaluation of doped stannates is not a common task in the photocatalysis area. In this work, Fe3+ doped BaSnO3 was synthesized by the modified Pechini method, with calcination between 300 and 800ºC/4 h. The powder precursor was characterized by thermogravimetry after partial elimination of carbon. Characterization after the second calcination step was done by X-ray diffraction, Raman spectroscopy and UV-visible spectroscopy. Materials were tested in the photocatalytic discoloration of the Remazol Golden Yellow azo dye under UVC irradiation. Higher photocatalytic efficiency was observed under acid media. As no meaningful adsorption was observed at this condition we believe that an indirect mechanism prevails. Fe3+ doping decreased the band gap and favored the photocatalytic reaction, which may be assigned to the formation of intermediate levels inside the band gap.
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spelling Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 PerovskitePerovskiteFe-dopedpolymeric precursor methodphotocatalysisRNLIn the last ten years, stannates with perovskite structure have been tested as photocatalysts. In spite of the ability of perovskite materials to accommodate different cations in its structure, evaluation of doped stannates is not a common task in the photocatalysis area. In this work, Fe3+ doped BaSnO3 was synthesized by the modified Pechini method, with calcination between 300 and 800ºC/4 h. The powder precursor was characterized by thermogravimetry after partial elimination of carbon. Characterization after the second calcination step was done by X-ray diffraction, Raman spectroscopy and UV-visible spectroscopy. Materials were tested in the photocatalytic discoloration of the Remazol Golden Yellow azo dye under UVC irradiation. Higher photocatalytic efficiency was observed under acid media. As no meaningful adsorption was observed at this condition we believe that an indirect mechanism prevails. Fe3+ doping decreased the band gap and favored the photocatalytic reaction, which may be assigned to the formation of intermediate levels inside the band gap.ABM, ABC, ABPol2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800317Materials Research v.20 suppl.2 2017reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2016-1062info:eu-repo/semantics/openAccessMoura,Kleber FigueiredoChantelle,LaísRosendo,DéboraLongo,ElsonSantos,Ieda Maria Garcia doseng2018-04-12T00:00:00Zoai:scielo:S1516-14392017000800317Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2018-04-12T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 Perovskite
title Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 Perovskite
spellingShingle Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 Perovskite
Moura,Kleber Figueiredo
Perovskite
Fe-doped
polymeric precursor method
photocatalysis
RNL
title_short Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 Perovskite
title_full Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 Perovskite
title_fullStr Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 Perovskite
title_full_unstemmed Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 Perovskite
title_sort Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 Perovskite
author Moura,Kleber Figueiredo
author_facet Moura,Kleber Figueiredo
Chantelle,Laís
Rosendo,Débora
Longo,Elson
Santos,Ieda Maria Garcia dos
author_role author
author2 Chantelle,Laís
Rosendo,Débora
Longo,Elson
Santos,Ieda Maria Garcia dos
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Moura,Kleber Figueiredo
Chantelle,Laís
Rosendo,Débora
Longo,Elson
Santos,Ieda Maria Garcia dos
dc.subject.por.fl_str_mv Perovskite
Fe-doped
polymeric precursor method
photocatalysis
RNL
topic Perovskite
Fe-doped
polymeric precursor method
photocatalysis
RNL
description In the last ten years, stannates with perovskite structure have been tested as photocatalysts. In spite of the ability of perovskite materials to accommodate different cations in its structure, evaluation of doped stannates is not a common task in the photocatalysis area. In this work, Fe3+ doped BaSnO3 was synthesized by the modified Pechini method, with calcination between 300 and 800ºC/4 h. The powder precursor was characterized by thermogravimetry after partial elimination of carbon. Characterization after the second calcination step was done by X-ray diffraction, Raman spectroscopy and UV-visible spectroscopy. Materials were tested in the photocatalytic discoloration of the Remazol Golden Yellow azo dye under UVC irradiation. Higher photocatalytic efficiency was observed under acid media. As no meaningful adsorption was observed at this condition we believe that an indirect mechanism prevails. Fe3+ doping decreased the band gap and favored the photocatalytic reaction, which may be assigned to the formation of intermediate levels inside the band gap.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800317
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800317
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2016-1062
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.20 suppl.2 2017
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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