Photocatalytic activity and photoluminescence properties of TiO2, In2O3, TiO2/In2O3 thin films multilayer

Paskocimas, Carlos Alberto; Garcia, Laurênia Martins Pereira; Tavares, Mara Tatiane de Souza; Andrade Neto, Nivaldo Freire de; Nascimento, Rubens Maribondo do; Silva, Elson Longo da; Delmonte, Maurício Roberto Bomio; Motta, Fabiana Villela da

Photocatalytic activity and photoluminescence properties of TiO2, In2O3, TiO2/In2O3 thin films multilayer

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dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Garcia, Laurênia Martins Pereira
dc.contributor.author	Tavares, Mara Tatiane de Souza
dc.contributor.author	Andrade Neto, Nivaldo Freire de
dc.contributor.author	Nascimento, Rubens Maribondo do
dc.contributor.author	Silva, Elson Longo da
dc.contributor.author	Delmonte, Maurício Roberto Bomio
dc.contributor.author	Motta, Fabiana Villela da
dc.date.accessioned	2021-04-12T20:09:32Z
dc.date.available	2021-04-12T20:09:32Z
dc.date.issued	2018-01-20
dc.description.resumo	This study evaluated the effect of crystallization temperature (300, 500 and 700 °C) on the photocatalytic and photoluminescent properties of the multilayer thin films of TiO2, In2O3 and TiO2/In2O3 which were prepared by the Complex Polymerization Method (CPM) and deposited on substrates of Si (100) by the spin coating method. The results of X-ray diffraction (XRD) revealed that there was no chemical interaction between the oxides (TiO2/In2O3) in crystalline films. The morphology was observed by atomic force microscopy (AFM) with a mean grain size of 15–35 nm. The result showed that the photocatalytic property is significantly increased by increasing the crystallization temperature. This is due to the agitation of the molecules which facilitates the transfer of charge between the electron and the catalyst bore. UV–vis light absorption spectra indicated that the addition of In2O3 in TiO2 films is an effective way of increasing the uptake of TiO2 in the visible region up to ~600 nm for photocatalytic applications, it was also possible to observe that these films could be easily Recycled for reuse. The samples were also characterized by photoluminescence, where it was possible to observe that the reduction of the PL intensity increased the photocatalytic activity of the thin films, with the increase of the crystallization temperature. In addition, the method used in this study is simple and economical compared to other methods	pt_BR
dc.identifier.citation	GARCIA, L. M. P.; TAVARES, M. T. S.; ANDRADE NETO, N. F.; NASCIMENTO, R. M.; PASKOCIMAS, C. A.; LONGO, E.; BOMIO, M. R. D.; MOTTA, F. V.. Photocatalytic activity and photoluminescence properties of TiO2, In2O3, TiO2/In2O3 thin films multilayer. Journal of Materials Science: Materials in Electronics, [S.L.], v. 29, n. 8, p. 6530-6542, 20 jan. 2018. Disponível em: https://link.springer.com/article/10.1007%2Fs10854-018-8635-x. Acesso em: 11 dez. 2020. http://dx.doi.org/10.1007/s10854-018-8635-x.	pt_BR
dc.identifier.doi	10.1007/s10854-018-8635-x
dc.identifier.issn	0957-4522
dc.identifier.issn	1573-482X
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32171
dc.language	en	pt_BR
dc.publisher	Springer	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Photocatalytic activity	pt_BR
dc.subject	Photoluminescence properties	pt_BR
dc.subject	TiO2	pt_BR
dc.subject	In2O3	pt_BR
dc.subject	TiO2/In2O3	pt_BR
dc.subject	Films multilayer	pt_BR
dc.title	Photocatalytic activity and photoluminescence properties of TiO2, In2O3, TiO2/In2O3 thin films multilayer	pt_BR
dc.type	article	pt_BR