Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications

Detalhes bibliográficos
Autor(a) principal: Correia, F. C.
Data de Publicação: 2018
Outros Autores: Calheiros, M., Marques, Juliana Filipa Gouveia, Ribeiro, J. M., Tavares, C. J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/73005
Resumo: Dendritic growth of bismuth oxide nanostructured films was accomplished by reactive magnetron sputtering. The deposition of the Bi2O3 template layers was adapted to abide a vapour-liquid-solid mechanism in order to develop a 3D growth morphology with high surface area templates for photocatalytic applications. TiO2 photocatalytic thin films were deposited at a later stage onto Bi2O3 layers. The obtained heterostructured films were characterized by scanning electron microscopy, X-ray diffraction and atomic force microscopy. Additionally, the photocatalytic efficiency was assessed by conducting an assay using methylene blue dye as testing pollutant under a UV-A illumination. The photocatalytic tests revealed that the Bi2O3 layers functionalized with TiO2 thin films are more efficient at degrading the pollutant, by a factor of 6, when compared with the individual layered films.
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spelling Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applicationsBi2O3TiO2PhotocatalysisReactive sputteringVapour-liquid-solid mechanismDendriticBi O 2 3Ciências Naturais::Ciências FísicasScience & TechnologyDendritic growth of bismuth oxide nanostructured films was accomplished by reactive magnetron sputtering. The deposition of the Bi2O3 template layers was adapted to abide a vapour-liquid-solid mechanism in order to develop a 3D growth morphology with high surface area templates for photocatalytic applications. TiO2 photocatalytic thin films were deposited at a later stage onto Bi2O3 layers. The obtained heterostructured films were characterized by scanning electron microscopy, X-ray diffraction and atomic force microscopy. Additionally, the photocatalytic efficiency was assessed by conducting an assay using methylene blue dye as testing pollutant under a UV-A illumination. The photocatalytic tests revealed that the Bi2O3 layers functionalized with TiO2 thin films are more efficient at degrading the pollutant, by a factor of 6, when compared with the individual layered films.The authors acknowledge the funding from the Portuguese institution Fundacao para a Ciencia e Tecnologia, through the Strategic project reference UID/FIS/04650/2013, Ph.D grant SFRH/BD/111720/2015 for Filipe C. Correia and Ph.D grant SFRH/BD/112868/2015 Juliana Marques.ElsevierUniversidade do MinhoCorreia, F. C.Calheiros, M.Marques, Juliana Filipa GouveiaRibeiro, J. M.Tavares, C. J.20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/73005engCorreia, F. C., Calheiros, M., Marques, J., Ribeiro, J. M., & Tavares, C. J. (2018). Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications. Ceramics International, 44(18), 22638-22644. doi: https://doi.org/10.1016/j.ceramint.2018.09.0400272-884210.1016/j.ceramint.2018.09.040https://www.sciencedirect.com/science/article/pii/S0272884218325082info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:05:42Zoai:repositorium.sdum.uminho.pt:1822/73005Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:56:12.077910Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications
title Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications
spellingShingle Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications
Correia, F. C.
Bi2O3
TiO2
Photocatalysis
Reactive sputtering
Vapour-liquid-solid mechanism
Dendritic
Bi O 2 3
Ciências Naturais::Ciências Físicas
Science & Technology
title_short Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications
title_full Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications
title_fullStr Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications
title_full_unstemmed Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications
title_sort Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications
author Correia, F. C.
author_facet Correia, F. C.
Calheiros, M.
Marques, Juliana Filipa Gouveia
Ribeiro, J. M.
Tavares, C. J.
author_role author
author2 Calheiros, M.
Marques, Juliana Filipa Gouveia
Ribeiro, J. M.
Tavares, C. J.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Correia, F. C.
Calheiros, M.
Marques, Juliana Filipa Gouveia
Ribeiro, J. M.
Tavares, C. J.
dc.subject.por.fl_str_mv Bi2O3
TiO2
Photocatalysis
Reactive sputtering
Vapour-liquid-solid mechanism
Dendritic
Bi O 2 3
Ciências Naturais::Ciências Físicas
Science & Technology
topic Bi2O3
TiO2
Photocatalysis
Reactive sputtering
Vapour-liquid-solid mechanism
Dendritic
Bi O 2 3
Ciências Naturais::Ciências Físicas
Science & Technology
description Dendritic growth of bismuth oxide nanostructured films was accomplished by reactive magnetron sputtering. The deposition of the Bi2O3 template layers was adapted to abide a vapour-liquid-solid mechanism in order to develop a 3D growth morphology with high surface area templates for photocatalytic applications. TiO2 photocatalytic thin films were deposited at a later stage onto Bi2O3 layers. The obtained heterostructured films were characterized by scanning electron microscopy, X-ray diffraction and atomic force microscopy. Additionally, the photocatalytic efficiency was assessed by conducting an assay using methylene blue dye as testing pollutant under a UV-A illumination. The photocatalytic tests revealed that the Bi2O3 layers functionalized with TiO2 thin films are more efficient at degrading the pollutant, by a factor of 6, when compared with the individual layered films.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-01-01T00:00:00Z
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://hdl.handle.net/1822/73005
url http://hdl.handle.net/1822/73005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Correia, F. C., Calheiros, M., Marques, J., Ribeiro, J. M., & Tavares, C. J. (2018). Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications. Ceramics International, 44(18), 22638-22644. doi: https://doi.org/10.1016/j.ceramint.2018.09.040
0272-8842
10.1016/j.ceramint.2018.09.040
https://www.sciencedirect.com/science/article/pii/S0272884218325082
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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