Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/75899 |
Resumo: | Barium monoferrite BaFe2O4 classified as permanent magnet stands out among other ceramic magnets due to its high chemical stability, corrosion resistance and low production cost. In addition, experiments conducted on photocatalytic degradation of methyl orange and UV transmittance by spectrophotometry have shown that this material has photocatalytic properties. The spinel ferrite is of importance in many technological areas such as computing, communications and security. Several techniques for synthesis have been studied to optimize the properties of this material. The synthesis of BaFe2O4 by conventional processes often occurs at temperatures above 1000 °C. In this work, we obtained the phase BaFe2O4 at low temperatures (600 °C) from the combustion reaction using nitrates and maleic anhydride as metal complexing agent. Techniques of X-ray diffraction, specific surface area, thermogravimetry analysis and photocatalytic analysis were employed to characterize the products obtained. |
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Da Dalt, SilvanaSousa, Bruna Berti deAlves, Annelise KoppBergmann, Carlos Perez2013-07-16T01:45:10Z20111516-1439http://hdl.handle.net/10183/75899000818925Barium monoferrite BaFe2O4 classified as permanent magnet stands out among other ceramic magnets due to its high chemical stability, corrosion resistance and low production cost. In addition, experiments conducted on photocatalytic degradation of methyl orange and UV transmittance by spectrophotometry have shown that this material has photocatalytic properties. The spinel ferrite is of importance in many technological areas such as computing, communications and security. Several techniques for synthesis have been studied to optimize the properties of this material. The synthesis of BaFe2O4 by conventional processes often occurs at temperatures above 1000 °C. In this work, we obtained the phase BaFe2O4 at low temperatures (600 °C) from the combustion reaction using nitrates and maleic anhydride as metal complexing agent. Techniques of X-ray diffraction, specific surface area, thermogravimetry analysis and photocatalytic analysis were employed to characterize the products obtained.application/pdfengMaterials research : ibero-american journal of materials [recurso eletrônico]. São Paulo, SP. Vol. 14, no. 4 (Oct./Dec. 2011), p. 505-507CombustãoFerritasMateriais magnéticosBarium monoferriteCombustion reactionPhotocatalysisStructural and photocatalytic characterization of BaFe2O4 obtained at low temperaturesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000818925.pdf000818925.pdfTexto completo (inglês)application/pdf1108895http://www.lume.ufrgs.br/bitstream/10183/75899/1/000818925.pdfb522cb308b73208559d5d67f435a6733MD51TEXT000818925.pdf.txt000818925.pdf.txtExtracted Texttext/plain12696http://www.lume.ufrgs.br/bitstream/10183/75899/2/000818925.pdf.txtdd4ba59139169bb7fb5d9fb6ce229a1bMD52THUMBNAIL000818925.pdf.jpg000818925.pdf.jpgGenerated Thumbnailimage/jpeg1995http://www.lume.ufrgs.br/bitstream/10183/75899/3/000818925.pdf.jpg6b3af77422901ae443cc0b4876cae677MD5310183/758992022-06-03 04:34:55.299635oai:www.lume.ufrgs.br:10183/75899Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-06-03T07:34:55Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures |
title |
Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures |
spellingShingle |
Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures Da Dalt, Silvana Combustão Ferritas Materiais magnéticos Barium monoferrite Combustion reaction Photocatalysis |
title_short |
Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures |
title_full |
Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures |
title_fullStr |
Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures |
title_full_unstemmed |
Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures |
title_sort |
Structural and photocatalytic characterization of BaFe2O4 obtained at low temperatures |
author |
Da Dalt, Silvana |
author_facet |
Da Dalt, Silvana Sousa, Bruna Berti de Alves, Annelise Kopp Bergmann, Carlos Perez |
author_role |
author |
author2 |
Sousa, Bruna Berti de Alves, Annelise Kopp Bergmann, Carlos Perez |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Da Dalt, Silvana Sousa, Bruna Berti de Alves, Annelise Kopp Bergmann, Carlos Perez |
dc.subject.por.fl_str_mv |
Combustão Ferritas Materiais magnéticos |
topic |
Combustão Ferritas Materiais magnéticos Barium monoferrite Combustion reaction Photocatalysis |
dc.subject.eng.fl_str_mv |
Barium monoferrite Combustion reaction Photocatalysis |
description |
Barium monoferrite BaFe2O4 classified as permanent magnet stands out among other ceramic magnets due to its high chemical stability, corrosion resistance and low production cost. In addition, experiments conducted on photocatalytic degradation of methyl orange and UV transmittance by spectrophotometry have shown that this material has photocatalytic properties. The spinel ferrite is of importance in many technological areas such as computing, communications and security. Several techniques for synthesis have been studied to optimize the properties of this material. The synthesis of BaFe2O4 by conventional processes often occurs at temperatures above 1000 °C. In this work, we obtained the phase BaFe2O4 at low temperatures (600 °C) from the combustion reaction using nitrates and maleic anhydride as metal complexing agent. Techniques of X-ray diffraction, specific surface area, thermogravimetry analysis and photocatalytic analysis were employed to characterize the products obtained. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011 |
dc.date.accessioned.fl_str_mv |
2013-07-16T01:45:10Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/75899 |
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1516-1439 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000818925 |
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1516-1439 000818925 |
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http://hdl.handle.net/10183/75899 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Materials research : ibero-american journal of materials [recurso eletrônico]. São Paulo, SP. Vol. 14, no. 4 (Oct./Dec. 2011), p. 505-507 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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