Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering

Detalhes bibliográficos
Autor(a) principal: Escaliante, Lucas Caniati [UNESP]
Data de Publicação: 2021
Outros Autores: Rocha, Kleper De Oliveira [UNESP], Silva, Jose Humberto Dias Da [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/1980-5373-MR-2021-0051
http://hdl.handle.net/11449/212967
Resumo: The photocatalytic activity and stability of TiO2 thin films deposited by reactive sputtering were evaluated through many cycles of aqueous methylene blue solutions photodegradation. Tests were performed in TiO2 films deposited onto silica, silicon, and lanthanum aluminate substrates under UV light irradiation. The dye degradation was determined using the optical absorbance spectra at pre-established exposure times. After 16 cycles of reaction, 180 minutes each, no systematic losses in the photocatalytic activity were observed in the samples. The best activity was observed on films deposited onto silica glass. The results indicate that the TiO2 samples deposited by the sputtering technique are stable concerning the UV degradation of methylene blue.
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spelling Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive SputteringPhotocatalysisTitanium DioxideSputteringStabilityThe photocatalytic activity and stability of TiO2 thin films deposited by reactive sputtering were evaluated through many cycles of aqueous methylene blue solutions photodegradation. Tests were performed in TiO2 films deposited onto silica, silicon, and lanthanum aluminate substrates under UV light irradiation. The dye degradation was determined using the optical absorbance spectra at pre-established exposure times. After 16 cycles of reaction, 180 minutes each, no systematic losses in the photocatalytic activity were observed in the samples. The best activity was observed on films deposited onto silica glass. The results indicate that the TiO2 samples deposited by the sputtering technique are stable concerning the UV degradation of methylene blue.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Estadual Paulista, Faculdade de CiênciasUniversidade Estadual Paulista, Faculdade de CiênciasCAPES: 001FAPESP: 2017/18916-2ABM, ABC, ABPolUniversidade Estadual Paulista (Unesp)Escaliante, Lucas Caniati [UNESP]Rocha, Kleper De Oliveira [UNESP]Silva, Jose Humberto Dias Da [UNESP]2021-07-14T10:47:53Z2021-07-14T10:47:53Z2021-07-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article-application/pdfhttp://dx.doi.org/10.1590/1980-5373-MR-2021-0051Materials Research. ABM, ABC, ABPol, v. 24, n. Suppl 1, p. -, 2021.1516-14391980-5373http://hdl.handle.net/11449/21296710.1590/1980-5373-MR-2021-0051S1516-14392021000700202S1516-14392021000700202.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Researchinfo:eu-repo/semantics/openAccess2024-04-25T17:39:23Zoai:repositorio.unesp.br:11449/212967Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:28:52.205861Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering
title Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering
spellingShingle Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering
Escaliante, Lucas Caniati [UNESP]
Photocatalysis
Titanium Dioxide
Sputtering
Stability
title_short Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering
title_full Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering
title_fullStr Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering
title_full_unstemmed Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering
title_sort Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering
author Escaliante, Lucas Caniati [UNESP]
author_facet Escaliante, Lucas Caniati [UNESP]
Rocha, Kleper De Oliveira [UNESP]
Silva, Jose Humberto Dias Da [UNESP]
author_role author
author2 Rocha, Kleper De Oliveira [UNESP]
Silva, Jose Humberto Dias Da [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Escaliante, Lucas Caniati [UNESP]
Rocha, Kleper De Oliveira [UNESP]
Silva, Jose Humberto Dias Da [UNESP]
dc.subject.por.fl_str_mv Photocatalysis
Titanium Dioxide
Sputtering
Stability
topic Photocatalysis
Titanium Dioxide
Sputtering
Stability
description The photocatalytic activity and stability of TiO2 thin films deposited by reactive sputtering were evaluated through many cycles of aqueous methylene blue solutions photodegradation. Tests were performed in TiO2 films deposited onto silica, silicon, and lanthanum aluminate substrates under UV light irradiation. The dye degradation was determined using the optical absorbance spectra at pre-established exposure times. After 16 cycles of reaction, 180 minutes each, no systematic losses in the photocatalytic activity were observed in the samples. The best activity was observed on films deposited onto silica glass. The results indicate that the TiO2 samples deposited by the sputtering technique are stable concerning the UV degradation of methylene blue.
publishDate 2021
dc.date.none.fl_str_mv 2021-07-14T10:47:53Z
2021-07-14T10:47:53Z
2021-07-05
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://dx.doi.org/10.1590/1980-5373-MR-2021-0051
Materials Research. ABM, ABC, ABPol, v. 24, n. Suppl 1, p. -, 2021.
1516-1439
1980-5373
http://hdl.handle.net/11449/212967
10.1590/1980-5373-MR-2021-0051
S1516-14392021000700202
S1516-14392021000700202.pdf
url http://dx.doi.org/10.1590/1980-5373-MR-2021-0051
http://hdl.handle.net/11449/212967
identifier_str_mv Materials Research. ABM, ABC, ABPol, v. 24, n. Suppl 1, p. -, 2021.
1516-1439
1980-5373
10.1590/1980-5373-MR-2021-0051
S1516-14392021000700202
S1516-14392021000700202.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Materials Research
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128365749600256

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