Visible-light photocatalytic activity and recyclability of N-doped TiO2 films grown by MOCVD

Atividade fotocatal??tica sob luz vis??vel e reutiliza????o de filmes de TiO2 dopados com N crescidos por MOCVD

dc.creatorOLIVEIRA, E.C. de
dc.creatorBENTO, R.T.
dc.creatorCORREA, O.V.
dc.creatorPILLIS, M.F.
dc.date2020
dc.date2021-02-22T18:33:54Z
dc.date2021-02-22T18:33:54Z
dc.date.accessioned2023-09-28T14:17:44Z
dc.date.available2023-09-28T14:17:44Z
dc.identifier0366-6913
dc.identifierhttp://repositorio.ipen.br/handle/123456789/31786
dc.identifier380
dc.identifier66
dc.identifier10.1590/0366-69132020663802957
dc.identifier0000-0002-1423-871X
dc.identifier0000-0002-1797-9652
dc.identifierSem Percentil
dc.identifier28.00
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9002009
dc.descriptionNitrogen-doped TiO2 films were grown on borosilicate glass substrates at 400 ??C by the metallorganic chemical vapor deposition (MOCVD) for removing dye from water under visible light. The effect of N-doping on the structural, surface, and photocatalytic properties of films was evaluated. X-ray photoelectron spectroscopy (XPS) analyses revealed that 1.56 and 2.44 at% of nitrogen were incorporated into the films by varying the NH3 flux during the growth. Methyl orange dye degradation experiments showed that the N-doped films presented photoactivity under visible light. The film containing 2.44 at% of nitrogen exhibited the best photocatalytic behavior, with 55% of efficiency. Recyclability tests under visible light showed that the film efficiency dropped gradually after each test. N-TiO2 films grown by MOCVD have the potential to be used in environmental applications by removing pollutants using a green method under sunlight or even under internal illumination, although its reuse is limited.
dc.descriptionConselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq)
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado de S??o Paulo (FAPESP)
dc.descriptionCNPq: 168935/2018-0
dc.descriptionFAPESP: 05/55861-4
dc.format451-459
dc.relationCer??mica
dc.rightsopenAccess
dc.subjectphotocatalysis
dc.subjecttitanium oxides
dc.subjectthin films
dc.subjectnanostructures
dc.subjectchemical vapor deposition
dc.subjectorganometallic compounds
dc.subjectnitrogen
dc.subjectdoped materials
dc.subjectrecycling
dc.subjectx-ray spectra
dc.titleVisible-light photocatalytic activity and recyclability of N-doped TiO2 films grown by MOCVD
dc.titleAtividade fotocatal??tica sob luz vis??vel e reutiliza????o de filmes de TiO2 dopados com N crescidos por MOCVD
dc.typeArtigo de peri??dico
dc.coverageI


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