Characterization on the Properties of Calcium Stannates Synthesized Under Different Atmospheres
Our research group has developed a novel process for synthesizing calcium stannate in a CO–CO2 atmosphere at lower temperature (<1000 °C). The formation behavior of calcium stannate was clarified in previous publications. In this study, the properties of CaSnO3, Ca2SnO4 and Eu-doped Ca2SnO4 synthesized under different atmospheres were further characterized. The results indicated CaSnO3 exhibited good photocatalytic performance in the degradation of Rhodamine B. As a dielectric material, Ca2SnO4 synthesized under CO–CO2 atmosphere had higher dielectric constant and lower dielectric tangent loss compared with that synthesized under air. In addition, the photoluminescence properties of Eu-doped Ca2SnO4 were close to that synthesized under air.
KeywordsCalcium stannate Solid-state reaction method Photocatalytic property Dielectric property Photoluminescence property
The authors would express their heartful thanks to Central South University Innovation Foundation for Postgraduate (No. 2018zzts790), the National Natural Science Foundation of China (No. 51574283) and the Natural Science Foundation of Hunan Province, China (No. 2016JJ2143).
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