Evaluation of morphology and photoluminescent properties of PbMoO4 crystals by ultrasonic amplitude

Paskocimas, Carlos Alberto; Gurgel, G. M.; Lovisa, Laura Ximena; Conceição, O. L. A.; Li, Maximo Siu; Silva, Elson Longo da; Motta, Fabiana Villela da; Delmonte, Maurício Roberto Bomio

Evaluation of morphology and photoluminescent properties of PbMoO4 crystals by ultrasonic amplitude

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dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Gurgel, G. M.
dc.contributor.author	Lovisa, Laura Ximena
dc.contributor.author	Conceição, O. L. A.
dc.contributor.author	Li, Maximo Siu
dc.contributor.author	Silva, Elson Longo da
dc.contributor.author	Motta, Fabiana Villela da
dc.contributor.author	Delmonte, Maurício Roberto Bomio
dc.date.accessioned	2021-04-16T14:28:37Z
dc.date.available	2021-04-16T14:28:37Z
dc.date.issued	2016-12-30
dc.description.resumo	Lead molybdate (PbMoO4) crystals were synthesized by the facile sonochemical method at 20 kHz frequency with a variable ultrasonic amplitude and synthesis time. These crystals were structurally characterized by X-ray diffraction (XRD). Field emission scanning electron microscopy images were employed to observe the evolution of the crystal growth process. XRD patterns indicate that these crystals have a scheelite-type tetragonal structure. The growth mechanism of PbMoO4 crystal was proposed to explain the development stages starting with precipitates formed by particles with disordered growth to form dendritic structures. The effect of the amplitude processing applied was rather significant for the size range of the particles produced. The optical properties were analyzed by ultraviolet–Visible (UV–Vis) absorption spectroscopy and photoluminescence (PL) measurements. The spectrum shows that the sample has a typical green emission. The origin of the PL emission spectrum of the metal molybdates might be ascribed to the charge-transfer transitions within [MoO4] clusters	pt_BR
dc.identifier.citation	GURGEL, G. M.; LOVISA, L. X.; CONCEIÇÃO, O. L. A.; LI, M. S.; LONGO, E.; PASKOCIMAS, C. A.; MOTTA, F. V.; BOMIO, M. R. D.. Evaluation of morphology and photoluminescent properties of PbMoO4 crystals by ultrasonic amplitude. Journal of Materials Science, [S.L.], v. 52, n. 8, p. 4608-4620, 30 dez. 2016. Disponível em: https://link.springer.com/article/10.1007%2Fs10853-016-0705-y. Acesso em: 11 dez. 2020. http://dx.doi.org/10.1007/s10853-016-0705-y.	pt_BR
dc.identifier.doi	10.1007/s10853-016-0705-y
dc.identifier.issn	0022-2461
dc.identifier.issn	1573-4803
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32240
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	Synthesis Time	pt_BR
dc.subject	Sonochemical Method	pt_BR
dc.subject	PbMoO4	pt_BR
dc.subject	Oriented Attachment	pt_BR
dc.subject	Molybdic Acid	pt_BR
dc.title	Evaluation of morphology and photoluminescent properties of PbMoO4 crystals by ultrasonic amplitude	pt_BR
dc.type	article	pt_BR