Phase Equilibrium and Synthesis in Ionic Melts of the System Na2WO4-K2WO4-Pb2WO4

Interest in a comprehensive study of lead tungstate single crystals is due to its scintillation properties [1-5]. It was found that lead tungstate occupies an exceptional position in the family of tungstates with a scheelite structure. Lead tungstate single crystal is a scintillation material [1] used in the LHC electromagnetic calorimeter and photon detector in the ALICE experiment at CERN [1, 2]. Now it can be said unequivocally that lead tungstate is the most promising scintillation material in the next decade.

Theoretical Investigation of the EPR G-Factor for the Axial Symmetry Ce3+ Center in the BaWO4 Single Crystal

The parameters g-factor (g|| and g⊥) together with the local structure of the Ce3+ center in BaWO4 single crystal (scheelite structure crystals) were theoretically investigated using a complete diagonalization procedure of energy matrix (CDM method). The intrinsic parameters were calculated. It is shown that the experimental and the calculated values of the g-factors are in good agreement. The angular distortion has also been calculated. It was found that the polar angles of the impurity–ligand bonding are smaller than in BaWO4 single crystal (Δθ≈1.00 ) . The validity of the results and the changing in the local environment of the impurity–cerium ion is also discussed.

Mulberry-like BiVO4 architectures: synthesis, characterization and their application in photocatalysis

In this work, mulberry-like BiVO4 architectures were successfully prepared by a facile solvothermal route. Morphology and structure characterizations reveal that the as-obtained mulberry-like BiVO4 architectures were well-crystallized monoclinic scheelite structure...

Effect of morphology and temperature treatment control on the photocatalytic and photoluminescence properties of SrWO4 crystals

This work reports the combined effect of the morphology and crystallization degree of the strontium tungstate (SrWO4) scheelite structure on its photocatalytic and photoluminescence properties.