Influence of doping with Sm3+ on photocatalytic reuse of ZnO thin films obtained by spin coating

Paskocimas, Carlos Alberto; Andrade Neto, Nivaldo Freire de; Carvalho, Raquel Guilherme de; Garcia, Laurênia Martins Pereira; Nascimento, Rubens Maribondo; Silva, Elson Longo da; Delmonte, Maurício Roberto Bomio; Motta, Fabiana Villela da

Influence of doping with Sm3+ on photocatalytic reuse of ZnO thin films obtained by spin coating

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dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Andrade Neto, Nivaldo Freire de
dc.contributor.author	Carvalho, Raquel Guilherme de
dc.contributor.author	Garcia, Laurênia Martins Pereira
dc.contributor.author	Nascimento, Rubens Maribondo
dc.contributor.author	Silva, Elson Longo da
dc.contributor.author	Delmonte, Maurício Roberto Bomio
dc.contributor.author	Motta, Fabiana Villela da
dc.date.accessioned	2021-04-12T19:51:48Z
dc.date.available	2021-04-12T19:51:48Z
dc.date.issued	2019-11
dc.description.resumo	The difficulty in the powder reuse favors the study of materials in the form of thin films. ZnO based films have high photocatalytic potential. In this work, ZnO:xSm3+ (x = 0, 1, 2 and 4 %mol) thin films were prepared by spin coating method. The resins obtained to manufacture the thin films were prepared by complex polymerization method. The samples were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), field emission scanning electron microscopy (FE-SEM) and spectroscopy UV-Vis. XRD patterns indicate that doping with 4%Sm forms Sm2O3 as the secondary phase. FE-SEM images of the cross section of thin films indicated a uniform thickness ranging from 354 to 367 nm between samples. The incorporation of Sm3+ ions in the ZnO lattice increases the Egap of the films. The photocatalytic performance of the films was tested with the photodegradation of methylene blue dye. Pure ZnO and ZnO:1%Sm3+ exhibited the best activity in the photodegradation. Thin films of pure ZnO exhibit the best photocatalytic results for the first cycle, but considerably reduce their efficiency with reuse. Sm3+ incorporation, without secondary phase formation, was efficient for the maintenance of the photocatalytic property after 3 cycles	pt_BR
dc.identifier.citation	ANDRADE NETO, Nivaldo Freire de; CARVALHO, Raquel Guilherme de; GARCIA, Laurênia Martins Pereira; NASCIMENTO, Rubens Maribondo; PASKOCIMAS, Carlos Alberto; LONGO, Elson; DELMONTE, Maurício Roberto Bomio; MOTTA, Fabiana Villela da. Influence of doping with Sm3+ on photocatalytic reuse of ZnO thin films obtained by spin coating. Matéria (Rio de Janeiro), [S.L.], v. 24, n. 4, p. 1-1, 2019. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762019000400309&tlng=en. Acesso em: 11 dez. 2020. http://dx.doi.org/10.1590/s1517-707620190004.0814.	pt_BR
dc.identifier.doi	10.1590/s1517-707620190004.0814.
dc.identifier.issn	1517-7076
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32168
dc.language	en	pt_BR
dc.publisher	Rede Latino-Americana de Materiais	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Samarium doped zinc oxide	pt_BR
dc.subject	Spin coating	pt_BR
dc.subject	Thin films	pt_BR
dc.subject	Photocatalytic reuse	pt_BR
dc.title	Influence of doping with Sm3+ on photocatalytic reuse of ZnO thin films obtained by spin coating	pt_BR
dc.type	article	pt_BR