Multilayered TiO2/TiO2−x/TiO2 films deposited by reactive sputtering for photocatalytic applications
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1557/s43578-021-00310-6 http://hdl.handle.net/11449/222042 |
Resumo: | Multilayered TiO2/TiO2−x/TiO2 films, deposited by twenty periodical interruptions of O2 flow during reactive sputtering deposition were submitted to photocatalytic tests and characterized. The O2 flow interruptions lasted 10 s, 38 s, 45 s, and 70 s, while the regular flow periods lasted 540 s. The photocatalytic tests were performed using UV irradiation from a mercury lamp and a solution of methylene blue dye. The best photocatalytic response was observed in samples corresponding to 10 s interruptions. The results show that the amount of degraded dye was increased by an average of 1.67 times in the interrupted flow sample as compared to the homogeneous TiO2 film deposited under similar conditions. The results show that this relatively simple deposition procedure can produce significant improvements to the photocatalytic activity of the TiO2-based catalysts. Graphic abstract: [Figure not available: see fulltext.] |
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Multilayered TiO2/TiO2−x/TiO2 films deposited by reactive sputtering for photocatalytic applicationsCatalyticLayeredSemiconductingSputteringThin filmMultilayered TiO2/TiO2−x/TiO2 films, deposited by twenty periodical interruptions of O2 flow during reactive sputtering deposition were submitted to photocatalytic tests and characterized. The O2 flow interruptions lasted 10 s, 38 s, 45 s, and 70 s, while the regular flow periods lasted 540 s. The photocatalytic tests were performed using UV irradiation from a mercury lamp and a solution of methylene blue dye. The best photocatalytic response was observed in samples corresponding to 10 s interruptions. The results show that the amount of degraded dye was increased by an average of 1.67 times in the interrupted flow sample as compared to the homogeneous TiO2 film deposited under similar conditions. The results show that this relatively simple deposition procedure can produce significant improvements to the photocatalytic activity of the TiO2-based catalysts. Graphic abstract: [Figure not available: see fulltext.]Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)School of Sciences Graduate Program in Materials Science and Technology - POSMAT Universidade Estadual Paulista – UNESPPhysics Department Fundamental Sciences Division – IEF Instituto Tecnológico de Aeronáutica – ITASchool of Sciences Graduate Program in Materials Science and Technology - POSMAT Universidade Estadual Paulista – UNESPFAPESP: 2017/18916-2Universidade Estadual Paulista (UNESP)Instituto Tecnológico de Aeronáutica – ITAEscaliante, Lucas Caniati [UNESP]Pereira, Andre Luis de JesusAffonço, Lucas Jorge [UNESP]da Silva, Jose Humberto Dias [UNESP]2022-04-28T19:42:05Z2022-04-28T19:42:05Z2021-08-14info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article3096-3108http://dx.doi.org/10.1557/s43578-021-00310-6Journal of Materials Research, v. 36, n. 15, p. 3096-3108, 2021.2044-53260884-2914http://hdl.handle.net/11449/22204210.1557/s43578-021-00310-62-s2.0-85111145074Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Materials Researchinfo:eu-repo/semantics/openAccess2022-04-28T19:42:05Zoai:repositorio.unesp.br:11449/222042Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462022-04-28T19:42:05Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Multilayered TiO2/TiO2−x/TiO2 films deposited by reactive sputtering for photocatalytic applications |
title |
Multilayered TiO2/TiO2−x/TiO2 films deposited by reactive sputtering for photocatalytic applications |
spellingShingle |
Multilayered TiO2/TiO2−x/TiO2 films deposited by reactive sputtering for photocatalytic applications Escaliante, Lucas Caniati [UNESP] Catalytic Layered Semiconducting Sputtering Thin film |
title_short |
Multilayered TiO2/TiO2−x/TiO2 films deposited by reactive sputtering for photocatalytic applications |
title_full |
Multilayered TiO2/TiO2−x/TiO2 films deposited by reactive sputtering for photocatalytic applications |
title_fullStr |
Multilayered TiO2/TiO2−x/TiO2 films deposited by reactive sputtering for photocatalytic applications |
title_full_unstemmed |
Multilayered TiO2/TiO2−x/TiO2 films deposited by reactive sputtering for photocatalytic applications |
title_sort |
Multilayered TiO2/TiO2−x/TiO2 films deposited by reactive sputtering for photocatalytic applications |
author |
Escaliante, Lucas Caniati [UNESP] |
author_facet |
Escaliante, Lucas Caniati [UNESP] Pereira, Andre Luis de Jesus Affonço, Lucas Jorge [UNESP] da Silva, Jose Humberto Dias [UNESP] |
author_role |
author |
author2 |
Pereira, Andre Luis de Jesus Affonço, Lucas Jorge [UNESP] da Silva, Jose Humberto Dias [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Instituto Tecnológico de Aeronáutica – ITA |
dc.contributor.author.fl_str_mv |
Escaliante, Lucas Caniati [UNESP] Pereira, Andre Luis de Jesus Affonço, Lucas Jorge [UNESP] da Silva, Jose Humberto Dias [UNESP] |
dc.subject.por.fl_str_mv |
Catalytic Layered Semiconducting Sputtering Thin film |
topic |
Catalytic Layered Semiconducting Sputtering Thin film |
description |
Multilayered TiO2/TiO2−x/TiO2 films, deposited by twenty periodical interruptions of O2 flow during reactive sputtering deposition were submitted to photocatalytic tests and characterized. The O2 flow interruptions lasted 10 s, 38 s, 45 s, and 70 s, while the regular flow periods lasted 540 s. The photocatalytic tests were performed using UV irradiation from a mercury lamp and a solution of methylene blue dye. The best photocatalytic response was observed in samples corresponding to 10 s interruptions. The results show that the amount of degraded dye was increased by an average of 1.67 times in the interrupted flow sample as compared to the homogeneous TiO2 film deposited under similar conditions. The results show that this relatively simple deposition procedure can produce significant improvements to the photocatalytic activity of the TiO2-based catalysts. Graphic abstract: [Figure not available: see fulltext.] |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-14 2022-04-28T19:42:05Z 2022-04-28T19:42:05Z |
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/10.1557/s43578-021-00310-6 Journal of Materials Research, v. 36, n. 15, p. 3096-3108, 2021. 2044-5326 0884-2914 http://hdl.handle.net/11449/222042 10.1557/s43578-021-00310-6 2-s2.0-85111145074 |
url |
http://dx.doi.org/10.1557/s43578-021-00310-6 http://hdl.handle.net/11449/222042 |
identifier_str_mv |
Journal of Materials Research, v. 36, n. 15, p. 3096-3108, 2021. 2044-5326 0884-2914 10.1557/s43578-021-00310-6 2-s2.0-85111145074 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Materials Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
3096-3108 |
dc.source.none.fl_str_mv |
Scopus 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 |
repositoriounesp@unesp.br |
_version_ |
1826303439135571968 |