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ABO4 type scheelite phases in (Ca/Sr)MoO4 - BiVO4 - Bi2Mo3O12 systems: synthesis, structure and optical properties

Z. A. Mikhaylovskaya, E. S. Buyanova, S. A. Petrova, A. V. Klimova

Abstract


The cation deficient complex oxides of (Ca/Sr)MoO4 - BiVO4 - Bi2Mo3O12 triple system are promising photocatalysts and pigments. Compounds with general formula of
Ca1−1.5x-yBix+yФxMo1-yVyO4  and Sr1−1.5x-yBix+yФxMo1-yVyO4 were synthesized byconvention solid state technique in the range of 550–720 °C. Two wide regions of the solid solutions (ordinary and superstructured scheelite-type phases respectively) were found for each system. The diffuse scatering of homogeneous samples was investigated in the range of 190–1100 nm. Energy gaps calculated with linear approximation of Kubelka-Munk function decreases with bismuth and vanadium content.

Keywords


strontium bismuth molybdate; calcium bismuth molybdate; Kubelka-Munk method; energy gap

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References


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DOI: https://doi.org/10.15826/chimtech.2021.8.2.04

Copyright (c) 2021 Zoya A. Mikhaylovskaya, Elena S. Buyanova, Sofia A. Petrova, Alexandra V. Klimova

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Chimica Techno Acta, 2014-2022
ISSN 2411-1414 (Online)