Crystallization study of SrSnO3:Fe

Vieira, F. T. G.; Oliveira, André Luiz Menezes de; Melo, Djair Alves de; Lima, Severino Jackson Guedes de; Longo, Elson; Maia, A. S.; Souza, A. G.; Santos, I. M. G.

doi:10.1007/s10973-011-1509-6

Cited by 8 publications

(1 citation statement)

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“…For instance, the solid solution BaSn 0.2 Pb 0. 8 , which contribute to the perovskite stabilization [24][25][26] . The magnetic properties of this Fe-doped perovskite have been studied, but, up to our knowledge, its use as photocatalyst has not been reported yet.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fe3+ Doping in the Photocatalytic Properties of BaSnO3 Perovskite

et al. 2017

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In the last ten years, stannates with perovskite structure have been tested as photocatalysts. In spite of the ability of perovskite materials to accommodate different cations in its structure, evaluation of doped stannates is not a common task in the photocatalysis area. In this work, Fe 3+ doped BaSnO 3 was synthesized by the modified Pechini method, with calcination between 300 and 800°C/4 h. The powder precursor was characterized by thermogravimetry after partial elimination of carbon. Characterization after the second calcination step was done by X-ray diffraction, Raman spectroscopy and UV-visible spectroscopy. Materials were tested in the photocatalytic discoloration of the Remazol Golden Yellow azo dye under UVC irradiation. Higher photocatalytic efficiency was observed under acid media. As no meaningful adsorption was observed at this condition we believe that an indirect mechanism prevails. Fe 3+ doping decreased the band gap and favored the photocatalytic reaction, which may be assigned to the formation of intermediate levels inside the band gap.

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