Hydrothermal-microwave synthesis of cadmium metasilicate enhances photocatalytic activity and radiation resistance.
A hydrothermal-microwave method for the synthesis of cadmium metasilicate was developed using water-soluble cadmium compounds and sodium silicate, demonstrating enhanced efficiency compared to conventional thermal techniques. The synthesized product, cadmium metasilicate, is a nanodispersed powder with high photocatalytic activity and radiation resistance. The physicochemical properties of the synthesized cadmium metasilicate were investigated using differential thermal analysis, X-ray diffraction, UV–VIS and IR spectroscopy, as well as electron microscopy. The results showed that the band gap (Eg) of the synthesized powder, depending on the heat-treatment temperature and proton irradiation, varies in the range of 5.06–5.46 eV. The material obtained by the proposed method can be used as a dielectric, a photocatalyst, and for protection against ionizing radiation.
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Sargsyan et al. (2025) studied this question.
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