α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: factorial experimental design application and reaction mechanism investigation

Detalhes bibliográficos
Autor(a) principal: Brasileiro, Islanny Larissa Ouriques
Data de Publicação: 2020
Outros Autores: Madeira, Vivian Stumpf, Souza, Calrson Pereira, Motiyama, André Luis Lopes, ramalho, Maria Luisa Rodrigues de Almeida
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/handle/123456789/32329
Resumo: 2030
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spelling Brasileiro, Islanny Larissa OuriquesMadeira, Vivian StumpfSouza, Calrson PereiraMotiyama, André Luis Lopesramalho, Maria Luisa Rodrigues de Almeida2021-04-27T15:20:51Z2020-02-01BRASILEIRO, ISLANNY LARISSA OURIQUES ; MADEIRA, VIVIAN STUMPF ; DE SOUZA, CALRSON PEREIRA ; LOPES-MORIYAMA, ANDRÉ LUIS ; RAMALHO, MARIA LUISA RODRIGUES DE ALMEIDA . α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: Factorial experimental design application and reaction mechanism investigation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, v. 388, p. 112199, 2020. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S1010603019308895?via%3Dihub. Acesso em: 27 abr. 2021. https://doi.org/10.1016/j.jphotochem.2019.1121991010-6030https://repositorio.ufrn.br/handle/123456789/3232910.1016/j.jphotochem.2019.112199ElsevierMethylene blueLangmuir-Hinshelwoodα-Fe2O3Nb2O5Photo-FentonExperimental designα-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: factorial experimental design application and reaction mechanism investigationinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2030Developing new high efficiency and stable catalysts for the degradation of organic compounds in effluents, under solar light has been a great challenge. In this regard, this work describes the synthesis of a α-Fe2O3/Nb2O5 mixed oxide by the Pechini method. The results of XRD and SEM/EDS confirmed the presence of Fe and Nb in the materials synthesized. The mixture of semiconductors oxides resulted in the material of greater specific surface area. The catalyst efficiency was verified through the photodegradation of methylene blue (MB) by the heterogeneous photo-Fenton reaction, under different experimental conditions using a 24 factorial experimental design with the central point in triplicate. The variables that most influenced the system response were the concentrations of MB, of the catalyst and of H2O2. The mechanism proposed followed Langmuir-Hinshelwood kinetics, with the greatest color removal percentage of 85%, under the optimal experimental conditions found. The mixed oxide exhibited greater efficiency when compared to the pure oxides synthesized since the synergic effect resulting from the mixture between Fe and Nb oxides led to the hematite activation. The catalyst remained stable even after five consecutive reaction cycles, unlike Nb2O5, suggesting its potential application in the environmental pollutants treatmentengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/32329/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/32329/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTα-Fe2O3_Nb2O5Mixed_Moriyama_2020.pdf.txtα-Fe2O3_Nb2O5Mixed_Moriyama_2020.pdf.txtExtracted texttext/plain51273https://repositorio.ufrn.br/bitstream/123456789/32329/4/%ce%b1-Fe2O3_Nb2O5Mixed_Moriyama_2020.pdf.txtce2cdb41c05eaed4fc4e5f667cf16cbbMD54THUMBNAILα-Fe2O3_Nb2O5Mixed_Moriyama_2020.pdf.jpgα-Fe2O3_Nb2O5Mixed_Moriyama_2020.pdf.jpgGenerated Thumbnailimage/jpeg1689https://repositorio.ufrn.br/bitstream/123456789/32329/5/%ce%b1-Fe2O3_Nb2O5Mixed_Moriyama_2020.pdf.jpg5e4967ee30f8996948b55c91376c7bceMD55123456789/323292024-03-19 01:05:56.341oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2024-03-19T04:05:56Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: factorial experimental design application and reaction mechanism investigation
title α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: factorial experimental design application and reaction mechanism investigation
spellingShingle α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: factorial experimental design application and reaction mechanism investigation
Brasileiro, Islanny Larissa Ouriques
Methylene blue
Langmuir-Hinshelwood
α-Fe2O3
Nb2O5
Photo-Fenton
Experimental design
title_short α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: factorial experimental design application and reaction mechanism investigation
title_full α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: factorial experimental design application and reaction mechanism investigation
title_fullStr α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: factorial experimental design application and reaction mechanism investigation
title_full_unstemmed α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: factorial experimental design application and reaction mechanism investigation
title_sort α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: factorial experimental design application and reaction mechanism investigation
author Brasileiro, Islanny Larissa Ouriques
author_facet Brasileiro, Islanny Larissa Ouriques
Madeira, Vivian Stumpf
Souza, Calrson Pereira
Motiyama, André Luis Lopes
ramalho, Maria Luisa Rodrigues de Almeida
author_role author
author2 Madeira, Vivian Stumpf
Souza, Calrson Pereira
Motiyama, André Luis Lopes
ramalho, Maria Luisa Rodrigues de Almeida
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Brasileiro, Islanny Larissa Ouriques
Madeira, Vivian Stumpf
Souza, Calrson Pereira
Motiyama, André Luis Lopes
ramalho, Maria Luisa Rodrigues de Almeida
dc.subject.por.fl_str_mv Methylene blue
Langmuir-Hinshelwood
α-Fe2O3
Nb2O5
Photo-Fenton
Experimental design
topic Methylene blue
Langmuir-Hinshelwood
α-Fe2O3
Nb2O5
Photo-Fenton
Experimental design
description 2030
publishDate 2020
dc.date.issued.fl_str_mv 2020-02-01
dc.date.accessioned.fl_str_mv 2021-04-27T15:20:51Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.citation.fl_str_mv BRASILEIRO, ISLANNY LARISSA OURIQUES ; MADEIRA, VIVIAN STUMPF ; DE SOUZA, CALRSON PEREIRA ; LOPES-MORIYAMA, ANDRÉ LUIS ; RAMALHO, MARIA LUISA RODRIGUES DE ALMEIDA . α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: Factorial experimental design application and reaction mechanism investigation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, v. 388, p. 112199, 2020. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S1010603019308895?via%3Dihub. Acesso em: 27 abr. 2021. https://doi.org/10.1016/j.jphotochem.2019.112199
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/handle/123456789/32329
dc.identifier.issn.none.fl_str_mv 1010-6030
dc.identifier.doi.none.fl_str_mv 10.1016/j.jphotochem.2019.112199
identifier_str_mv BRASILEIRO, ISLANNY LARISSA OURIQUES ; MADEIRA, VIVIAN STUMPF ; DE SOUZA, CALRSON PEREIRA ; LOPES-MORIYAMA, ANDRÉ LUIS ; RAMALHO, MARIA LUISA RODRIGUES DE ALMEIDA . α-Fe2O3/Nb2O5 mixed oxide active for the photodegradation of organic contaminant in water: Factorial experimental design application and reaction mechanism investigation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, v. 388, p. 112199, 2020. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S1010603019308895?via%3Dihub. Acesso em: 27 abr. 2021. https://doi.org/10.1016/j.jphotochem.2019.112199
1010-6030
10.1016/j.jphotochem.2019.112199
url https://repositorio.ufrn.br/handle/123456789/32329
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language eng
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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