Influence of the number of layers and crystallization temperature on the photocatalytic activity of Tio2 /  In2 o3 thin films

Paskocimas, Carlos Alberto; Garcia, Laurênia Martins Pereira; Gurgel, G. H. M.; Lovisa, Laura Ximena; Nascimento, Rubens Maribondo do; Delmonte, Maurício Roberto Bomio; Motta, Fabiana Villela da

Influence of the number of layers and crystallization temperature on the photocatalytic activity of Tio2 / In2 o3 thin films

Página do item simplificado Estatísticas

dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Garcia, Laurênia Martins Pereira
dc.contributor.author	Gurgel, G. H. M.
dc.contributor.author	Lovisa, Laura Ximena
dc.contributor.author	Nascimento, Rubens Maribondo do
dc.contributor.author	Delmonte, Maurício Roberto Bomio
dc.contributor.author	Motta, Fabiana Villela da
dc.date.accessioned	2021-04-19T14:25:42Z
dc.date.available	2021-04-19T14:25:42Z
dc.date.issued	2017-07-20
dc.description.resumo	The TiO2/In2 O3 thin films were prepared by the spin coating method, varying their number of layers (4, 8 and 16 layers). The Method of polymerization of complex (CPM) was used to synthesize the precursor resins in order to produce thin films. The TiO2/In2 O3 films were heat–treated at 300°C, 500°C and 700°C and characterized by X–ray diffraction, scanning electron microscopy (FEG–SEM), atomic force microscopy (AFM), UV–vis spectrophotometer and photoluminescence (PL). It was found that the band gap energy of the as–prepared TiO2/In2 O3 composite thin films decrease as temperature increases. According to the UV–vis diffuse reflectance spectra, the TiO2/In2 O3 composite shows good visible–light absorption ability. The photoluminescent properties of the films were studied at room temperature using a wavelength of 350nm excitation. High photoluminescent intensity was observed for the films treated at 300°C heat, studied in different films. The photocatalytic activity of the composite TiO2/In2 O3 was evaluated by the hotodecomposition of methylene blue dye in aqueous solution and showed that all the composite samples presented excellent photocatalytic performance even when recycled. This study shows that the coupling of TiO2 with In2O3 is an effective way to increase the TiO2 absorption in the visible region for catalytic applications and that the temperature has a greater influence on the results than the number of layers	pt_BR
dc.identifier.citation	GARCIA, Lmp; GURGEL, Ghm; LOVISA, Lx; NASCIMENTO, Rm; PASKOCIMAS, Ca; BOMIO, Mrd; MOTTA, Fv. Influence of the Number of Layers and Crystallization Temperature on the Photocatalytic Activity of Tio2 / In2O3 Thin Films. Material Science & Engineering International Journal, [S.L.], v. 1, n. 1, p. 5-11, 20 jul. 2017. Disponível em: https://medcraveonline.com/MSEIJ/influence-of-the-number-of-layers-and-crystallization-temperature-on-the-photocatalytic-activity-of-tio2--in2o3-thin-films.html. Acesso em: 14 dez. 2020. http://dx.doi.org/10.15406/mseij.2017.01.00005.	pt_BR
dc.identifier.doi	10.15406/mseij.2017.01.00005
dc.identifier.issn	2574-9927
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32272
dc.language	en	pt_BR
dc.publisher	MedCrave Group	pt_BR
dc.rights	Attribution-NonCommercial 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc/3.0/br/	*
dc.subject	Layers	pt_BR
dc.subject	Crystallization Temperature	pt_BR
dc.subject	Photocatalytic Activity	pt_BR
dc.subject	Tio2 / In2O3	pt_BR
dc.subject	Thin Films	pt_BR
dc.title	Influence of the number of layers and crystallization temperature on the photocatalytic activity of Tio2 / In2 o3 thin films	pt_BR
dc.type	article	pt_BR