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

Authors :: B. G. Bazarov
S. G. Dorzhieva
R. Y. Shendrik
Y. L. Tushinova
Ts. T. Bazarova
D. O. Sofich
O. D. Chimitova
J. G. Bazarova
Source :: Chimica Techno Acta, Vol 9, Iss 2 (2022)
Publication Year :: 2022
Publisher :: Uralʹskij federalʹnyj universitet imeni pervogo Prezidenta Rossii B.N. Elʹcina, 2022.
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.

Subjects :: solid-phase synthesis
sol-gel technology
framework structure
luminescence
tungstates
lanthanides
Chemistry
QD1-999

Full Text Access

Tools