Structural investigation and sonophotocatalytic properties of the solid solutions Sr(Mo1−xWx)O4 crystals synthesized by the sonochemical method
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Otros documentos de la autoría: de Sousa, P. B.; Nogueira, I. C.; Gusmão, G. O.M.; Gusmão, S. B.S.; Lopes, F.H.P.; Sousa, B. S.; Sczancoski, Júlio César; Gouveia, Amanda; Cavalcante, Laécio Santos
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7013
comunitat-uji-handle3:10234/8638
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Título
Structural investigation and sonophotocatalytic properties of the solid solutions Sr(Mo1−xWx)O4 crystals synthesized by the sonochemical methodAutoría
Fecha de publicación
2022-09-18Editor
SpringerISSN
0957-4522; 1573-482XCita bibliográfica
de Sousa, P.B., Nogueira, I.C., Gusmão, G.O. et al. Structural investigation and sonophotocatalytic properties of the solid solutions Sr(Mo1−xWx)O4 crystals synthesized by the sonochemical method. J Mater Sci: Mater Electron 33, 22127–22152 (2022). https://doi.org/10.1007/s10854-022-08985-1Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
In this paper, the solid solutions of strontium molybdate-tungstate [Sr(Mo1−xWx)O4] crystals with (x = 0, 0.25, 0.50, 0.75, and 1) were synthesized by the sonochemical method. Their structure, morphology, optical, and ... [+]
In this paper, the solid solutions of strontium molybdate-tungstate [Sr(Mo1−xWx)O4] crystals with (x = 0, 0.25, 0.50, 0.75, and 1) were synthesized by the sonochemical method. Their structure, morphology, optical, and sonophotocatalytic properties were performed in function of the replacement of Mo6+ by W6+ cations into the lattice. Their structure and elemental composition were characterized using X-ray diffraction, Rietveld refinement, micro-Raman, energy-dispersive X-ray, and Fourier-transform infrared spectroscopies proving that all samples are monophasic, crystalline, and exhibit a scheelite-type tetragonal structure. Field-emission scanning electron microscopy images revealed the octahedral and dumbbell-like morphologies for SrMoO4 and SrWO4 crystals. Moreover, it is noted to pass through spindle-like morphology for the microcrystals containing both Mo6+ and W6+ cations (x = 0.25, 0.50, and 0.75). Ultraviolet-visible diffuse reflectance spectroscopy showed a directly proportional increase in the optical band gap (Egap) values from 4.27 to 5.01 eV. These data indicate an increase in the intermediary electronic levels between valance and conduction bands with the increase in the concentration of W6+ cations in the lattice. Finally, we have obtained good sonophotocatalytic performances for SrMoO4 crystals (90%), and mainly to Sr(Mo0.25W0.75)O4 crystals (98%) in the degradation of Rhodamine B dye until 240 min under UV-C light. [-]
Publicado en
J Mater Sci: Mater Electron (2022) 33:22127–22152Datos relacionados
https://static-content.springer.com/esm/art%3A10.1007%2Fs10854-022-08985-1/MediaObjects/10854_2022_8985_MOESM1_ESM.docxEntidad financiadora
Fundación de Apoyo a la Investigación del Estado de São Paulo | Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil) | Universitat Jaume I
Código del proyecto o subvención
312318/2017-0 | 408036/2018-4 | 312644/2021-3 | 2013/07296-2 | 2012/14004-5 | POSDOC/2019/30 | 2019/01732-1
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©The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2022
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
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