Synthesis and luminescent properties of new tungstates Ln 2 Zr(WO 4 ) 5  (Ln = Tb, Dy)

B. G. Bazarov; S. G. Dorzhieva; R. Y. Shendrik; Y. L. Tushinova; Ts. T. Bazarova; D. O. Sofich; O. D. Chimitova; J. G. Bazarova

doi:10.15826/chimtech.2022.9.2.05

Synthesis and luminescent properties of new tungstates Ln₂Zr(WO₄)₅ (Ln = Tb, Dy)

B. G. Bazarov, S. G. Dorzhieva, R. Y. Shendrik, Y. L. Tushinova, Ts. T. Bazarova, D. O. Sofich, O. D. Chimitova, J. G. Bazarova

Abstract

New polycrystalline powder samples of double Ln₂Zr(WO₄)₅(Ln = Dy, Tb) tungstates were synthesized using high-temperature solid-phase and sol-gel methods. The conditions of the sol-gel synthesis of tungstates were optimized. The obtained phases were characterized by the X-ray powder diffraction on the basis of the crystallographic data of similar Ln–Zr molybdates. It is found that Ln₂Zr(WO₄)₅ (Ln = Dy, Tb) double tungstates crystallize in the orthorhombic crystal system, space group Cmc2₁ (Z = 4). The intensive luminescence in the green spectral region for Tb₂Zr(WO₄)₅ and yellow spectral region for Dy₂Zr(WO₄)₅ was shown.

Keywords

solid-phase synthesis; sol-gel technology; framework structure; luminescence; tungstates; lanthanides

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DOI: https://doi.org/10.15826/chimtech.2022.9.2.05

Copyright (c) 2021 B.G. Bazarov, R.Y. Shendrik, Y.L. Tushinova, Ts.T. Bazarova, D.O. Sofich, O.D. Chimitova, S.G. Dorjieva, J.G. Bazarova

This work is licensed under a Creative Commons Attribution 4.0 International License.

Chimica Techno Acta, 2014-2024
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