An improvement of photocatalytic activity of TiO2 Degussa P25 powder

Detalhes bibliográficos
Autor(a) principal: Bessergenev, V.
Data de Publicação: 2015
Outros Autores: Mateus, M. C., Botelho do Rego, A. M., Hantusch, M., Burkel, E.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/11443
Resumo: The photocatalytic activities of Degussa P25 powders annealed at various temperatures in vacuum and air were studied together with investigations of their compositions by XPS, of their crystal structures by XRD and of their specific surface areas by BET. It is shown that the photocatalytic activity of P25 powders was remarkably enhanced after vacuum annealing; the kinetic coefficient can be raised by 75% during annealing at 400 degrees C. It is obvious that this enhancement is not related to the adhesion ability of the P25 powders. (C) 2015 Elsevier B.V. All rights reserved.
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spelling An improvement of photocatalytic activity of TiO2 Degussa P25 powderTitanium-dioxideThin-filmsComplex precursorsThermal-treatmentAdsorptionAnataseRutileOxygenCalcinationTemperatureThe photocatalytic activities of Degussa P25 powders annealed at various temperatures in vacuum and air were studied together with investigations of their compositions by XPS, of their crystal structures by XRD and of their specific surface areas by BET. It is shown that the photocatalytic activity of P25 powders was remarkably enhanced after vacuum annealing; the kinetic coefficient can be raised by 75% during annealing at 400 degrees C. It is obvious that this enhancement is not related to the adhesion ability of the P25 powders. (C) 2015 Elsevier B.V. All rights reserved.Fundacao para a Ciencia e Tecnologia (FCT) Portugal; FCT [Pest-OE/CTM/LA0024/2013]Elsevier Science BvSapientiaBessergenev, V.Mateus, M. C.Botelho do Rego, A. M.Hantusch, M.Burkel, E.2018-12-07T14:53:18Z2015-072015-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11443eng0926-860X10.1016/j.apcata.2015.05.002info: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:RCAAP2023-07-24T10:23:15Zoai:sapientia.ualg.pt:10400.1/11443Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:02:57.104292Repositório 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 An improvement of photocatalytic activity of TiO2 Degussa P25 powder
title An improvement of photocatalytic activity of TiO2 Degussa P25 powder
spellingShingle An improvement of photocatalytic activity of TiO2 Degussa P25 powder
Bessergenev, V.
Titanium-dioxide
Thin-films
Complex precursors
Thermal-treatment
Adsorption
Anatase
Rutile
Oxygen
Calcination
Temperature
title_short An improvement of photocatalytic activity of TiO2 Degussa P25 powder
title_full An improvement of photocatalytic activity of TiO2 Degussa P25 powder
title_fullStr An improvement of photocatalytic activity of TiO2 Degussa P25 powder
title_full_unstemmed An improvement of photocatalytic activity of TiO2 Degussa P25 powder
title_sort An improvement of photocatalytic activity of TiO2 Degussa P25 powder
author Bessergenev, V.
author_facet Bessergenev, V.
Mateus, M. C.
Botelho do Rego, A. M.
Hantusch, M.
Burkel, E.
author_role author
author2 Mateus, M. C.
Botelho do Rego, A. M.
Hantusch, M.
Burkel, E.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Sapientia
dc.contributor.author.fl_str_mv Bessergenev, V.
Mateus, M. C.
Botelho do Rego, A. M.
Hantusch, M.
Burkel, E.
dc.subject.por.fl_str_mv Titanium-dioxide
Thin-films
Complex precursors
Thermal-treatment
Adsorption
Anatase
Rutile
Oxygen
Calcination
Temperature
topic Titanium-dioxide
Thin-films
Complex precursors
Thermal-treatment
Adsorption
Anatase
Rutile
Oxygen
Calcination
Temperature
description The photocatalytic activities of Degussa P25 powders annealed at various temperatures in vacuum and air were studied together with investigations of their compositions by XPS, of their crystal structures by XRD and of their specific surface areas by BET. It is shown that the photocatalytic activity of P25 powders was remarkably enhanced after vacuum annealing; the kinetic coefficient can be raised by 75% during annealing at 400 degrees C. It is obvious that this enhancement is not related to the adhesion ability of the P25 powders. (C) 2015 Elsevier B.V. All rights reserved.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
2015-07-01T00:00:00Z
2018-12-07T14:53:18Z
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/10400.1/11443
url http://hdl.handle.net/10400.1/11443
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0926-860X
10.1016/j.apcata.2015.05.002
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 Science Bv
publisher.none.fl_str_mv Elsevier Science Bv
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
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