Chimica Techno Acta (May 2022)

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

DOI
https://doi.org/10.15826/chimtech.2022.9.2.05
Journal volume & issue
Vol. 9, no. 2

Abstract

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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