Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering

Detalhes bibliográficos
Autor(a) principal: Escaliante,Lucas Caniati
Data de Publicação: 2021
Outros Autores: Rocha,Kleper de Oliveira, Silva,Jose Humberto Dias da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700202
Resumo: Abstract 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 DioxideSputteringStabilityAbstract 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.ABM, ABC, ABPol2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700202Materials Research v.24 suppl.1 2021reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2021-0051info:eu-repo/semantics/openAccessEscaliante,Lucas CaniatiRocha,Kleper de OliveiraSilva,Jose Humberto Dias daeng2021-07-02T00:00:00Zoai:scielo:S1516-14392021000700202Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2021-07-02T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)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
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
author_facet Escaliante,Lucas Caniati
Rocha,Kleper de Oliveira
Silva,Jose Humberto Dias da
author_role author
author2 Rocha,Kleper de Oliveira
Silva,Jose Humberto Dias da
author2_role author
author
dc.contributor.author.fl_str_mv Escaliante,Lucas Caniati
Rocha,Kleper de Oliveira
Silva,Jose Humberto Dias da
dc.subject.por.fl_str_mv Photocatalysis
Titanium Dioxide
Sputtering
Stability
topic Photocatalysis
Titanium Dioxide
Sputtering
Stability
description Abstract 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 2021-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700202
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700202
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2021-0051
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.24 suppl.1 2021
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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