Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyl

Detalhes bibliográficos
Autor(a) principal: Foudil,Rahal
Data de Publicação: 2020
Outros Autores: Djamila,Abdi
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042020000500004
Resumo: In this paper, we report on the preparation of an amorphous and nanocrystalline structure of titanium dioxide, by cathodic electrodeposition on fluorine doped tin dioxide (FTO) coated glass, from an aqueous peroxo-titanium complex solution. Structural X-ray analysis shows anatase phase for heated deposits, and an amorphous form for non-heated deposits. Scanning electron microscopy (SEM) allowed investigating the morphological aspect of the deposits which exhibited nano-particulate grain size. AFM results exhibited the different roughness values of both kinds of films. The crystalline deposits have been used as catalysts for the photocatalytic oxidation of methyl orange dye, under an irradiation source (UV lamp of 365 nm). The results revealed that the dye has undergone a slight degradation under UV illumination. Using spectrophotometer measurements, the decolourisation rate was estimated from residual concentration.
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spelling Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyltitanium dioxideelectrodepositionnanostructuresphotocatalytic oxidationmethyl orange dyeIn this paper, we report on the preparation of an amorphous and nanocrystalline structure of titanium dioxide, by cathodic electrodeposition on fluorine doped tin dioxide (FTO) coated glass, from an aqueous peroxo-titanium complex solution. Structural X-ray analysis shows anatase phase for heated deposits, and an amorphous form for non-heated deposits. Scanning electron microscopy (SEM) allowed investigating the morphological aspect of the deposits which exhibited nano-particulate grain size. AFM results exhibited the different roughness values of both kinds of films. The crystalline deposits have been used as catalysts for the photocatalytic oxidation of methyl orange dye, under an irradiation source (UV lamp of 365 nm). The results revealed that the dye has undergone a slight degradation under UV illumination. Using spectrophotometer measurements, the decolourisation rate was estimated from residual concentration.Sociedade Portuguesa de Electroquímica2020-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042020000500004Portugaliae Electrochimica Acta v.38 n.5 2020reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042020000500004Foudil,RahalDjamila,Abdiinfo:eu-repo/semantics/openAccess2024-02-06T17:07:33Zoai:scielo:S0872-19042020000500004Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:26.601673Repositório 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 Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyl
title Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyl
spellingShingle Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyl
Foudil,Rahal
titanium dioxide
electrodeposition
nanostructures
photocatalytic oxidation
methyl orange dye
title_short Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyl
title_full Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyl
title_fullStr Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyl
title_full_unstemmed Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyl
title_sort Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyl
author Foudil,Rahal
author_facet Foudil,Rahal
Djamila,Abdi
author_role author
author2 Djamila,Abdi
author2_role author
dc.contributor.author.fl_str_mv Foudil,Rahal
Djamila,Abdi
dc.subject.por.fl_str_mv titanium dioxide
electrodeposition
nanostructures
photocatalytic oxidation
methyl orange dye
topic titanium dioxide
electrodeposition
nanostructures
photocatalytic oxidation
methyl orange dye
description In this paper, we report on the preparation of an amorphous and nanocrystalline structure of titanium dioxide, by cathodic electrodeposition on fluorine doped tin dioxide (FTO) coated glass, from an aqueous peroxo-titanium complex solution. Structural X-ray analysis shows anatase phase for heated deposits, and an amorphous form for non-heated deposits. Scanning electron microscopy (SEM) allowed investigating the morphological aspect of the deposits which exhibited nano-particulate grain size. AFM results exhibited the different roughness values of both kinds of films. The crystalline deposits have been used as catalysts for the photocatalytic oxidation of methyl orange dye, under an irradiation source (UV lamp of 365 nm). The results revealed that the dye has undergone a slight degradation under UV illumination. Using spectrophotometer measurements, the decolourisation rate was estimated from residual concentration.
publishDate 2020
dc.date.none.fl_str_mv 2020-06-01
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.uri.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042020000500004
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042020000500004
dc.language.iso.fl_str_mv eng
language eng
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
dc.source.none.fl_str_mv Portugaliae Electrochimica Acta v.38 n.5 2020
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
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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
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