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Journal of Materials Science
Erschienen in: Journal of Materials Science 8/2017

30.12.2016 | Original Paper

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

verfasst von: G. M. Gurgel, L. X. Lovisa, O. L. A. Conceição, M. S. Li, E. Longo, C. A. Paskocimas, F. V. Motta, M. R. D. Bomio

Erschienen in: Journal of Materials Science | Ausgabe 8/2017

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Abstract

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.
Vorheriger Artikel Effects of Cr2O3-modified LiNi1/3Co1/3Mn1/3O2 cathode materials on the electrochemical performance of lithium-ion batteries
Nächster Artikel Effects of FLiNaK infiltration on thermal expansion behavior of graphite

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Metadaten
Titel
Evaluation of morphology and photoluminescent properties of PbMoO4 crystals by ultrasonic amplitude
verfasst von
G. M. Gurgel
L. X. Lovisa
O. L. A. Conceição
M. S. Li
E. Longo
C. A. Paskocimas
F. V. Motta
M. R. D. Bomio
Publikationsdatum
30.12.2016
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 8/2017
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-016-0705-y

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