Characterization of NaTaO3 synthesized by ultrasonic method

O. Vázquez-Cuchillo, A. Manzo-Robledo, R. Zanella, N. Elizondo-Villareal, A. Cruz-López

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

23 Citas (Scopus)

Resumen

NaTaO3 perovskite-like materials were synthesized using sodium acetate and tantalum ethoxide as precursors in an ultrasonic bath at room temperature. The pristine sample was thermally treated at 600 °C and characterized using XRD, N2 physisorption, DRS, SEM and TEM techniques. The structural characterization by X-ray powder diffraction revealed that the crystallization of the NaTaO3 phase prepared at 600 °C showed agglomerates sizes in the micrometric scale, as confirmed by scanning electron microscopy (SEM). On the other hand, well-defined NaTaO3 particles in the nanometric scale were determined using TEM. It was found that, for the treated sample, the band gap and BET area was 3.8 eV and 9.5 m 2 g-1, respectively. The annealed perovskite, deposited onto ITO glass, presented an important variation in the open circuit potential transient during UV light irradiation in neutral solution, compared with its counterpart prepared by solid-state method. These intrinsic properties, given by the preparation route, might be appropriate for increase its photocatalytic activity.

Idioma originalInglés
Páginas (desde-hasta)498-501
Número de páginas4
PublicaciónUltrasonics Sonochemistry
Volumen20
N.º1
DOI
EstadoPublicada - ene. 2013
Publicado de forma externa

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