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, Lais, Rosendo, Debora, Longo, Elson [UNESP], Garcia dos Santos, Ieda Maria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/1980-5373-MR-2016-1062
http://hdl.handle.net/11449/166095
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 800 degrees C/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 800 degrees C/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.CT-INFRA/FINEP/MCTICCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Fed Paraiba, Dept Quim, Lab Combustiveis & Mat LACOM, NPE, Campus 1, BR-58059900 Joao Pessoa, PB, BrazilUniv Estadual Paulista, Inst Quim, LIEC, CDMF, Rua Prof Francisco Degni 55, BR-14800900 Araraquara, SP, BrazilUniv Estadual Paulista, Inst Quim, LIEC, CDMF, Rua Prof Francisco Degni 55, BR-14800900 Araraquara, SP, BrazilUniv Fed Sao Carlos, Dept Engenharia MaterialsUniv Fed ParaibaUniversidade Estadual Paulista (Unesp)Moura, Kleber FigueiredoChantelle, LaisRosendo, DeboraLongo, Elson [UNESP]Garcia dos Santos, Ieda Maria2018-11-29T12:37:11Z2018-11-29T12:37:11Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article317-324application/pdfhttp://dx.doi.org/10.1590/1980-5373-MR-2016-1062Materials Research-ibero-american Journal Of Materials. Sao Carlos: Univ Fed Sao Carlos, Dept Engenharia Materials, v. 20, p. 317-324, 2017.1516-1439http://hdl.handle.net/11449/16609510.1590/1980-5373-MR-2016-1062S1516-14392017000800317WOS:000430187600049S1516-14392017000800317.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Research-ibero-american Journal Of Materials0,398info:eu-repo/semantics/openAccess2023-10-21T06:04:03Zoai:repositorio.unesp.br:11449/166095Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-21T06:04:03Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)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, Lais
Rosendo, Debora
Longo, Elson [UNESP]
Garcia dos Santos, Ieda Maria
author_role author
author2 Chantelle, Lais
Rosendo, Debora
Longo, Elson [UNESP]
Garcia dos Santos, Ieda Maria
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Univ Fed Paraiba
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Moura, Kleber Figueiredo
Chantelle, Lais
Rosendo, Debora
Longo, Elson [UNESP]
Garcia dos Santos, Ieda Maria
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 800 degrees C/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
2018-11-29T12:37:11Z
2018-11-29T12:37:11Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/1980-5373-MR-2016-1062
Materials Research-ibero-american Journal Of Materials. Sao Carlos: Univ Fed Sao Carlos, Dept Engenharia Materials, v. 20, p. 317-324, 2017.
1516-1439
http://hdl.handle.net/11449/166095
10.1590/1980-5373-MR-2016-1062
S1516-14392017000800317
WOS:000430187600049
S1516-14392017000800317.pdf
url http://dx.doi.org/10.1590/1980-5373-MR-2016-1062
http://hdl.handle.net/11449/166095
identifier_str_mv Materials Research-ibero-american Journal Of Materials. Sao Carlos: Univ Fed Sao Carlos, Dept Engenharia Materials, v. 20, p. 317-324, 2017.
1516-1439
10.1590/1980-5373-MR-2016-1062
S1516-14392017000800317
WOS:000430187600049
S1516-14392017000800317.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Materials Research-ibero-american Journal Of Materials
0,398
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 317-324
application/pdf
dc.publisher.none.fl_str_mv Univ Fed Sao Carlos, Dept Engenharia Materials
publisher.none.fl_str_mv Univ Fed Sao Carlos, Dept Engenharia Materials
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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