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Abstract <p>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 (<i>E</i><sub>g</sub>) 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.</p>

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Photocatalytic and Radiation-Optical Properties of Cadmium Metasilicate Synthesized by the Microwave Method

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • A. A. Sargsyan,
  • T. S. Azatyan,
  • E. M. Aleksanyan,
  • N. B. Knyazyan,
  • T. V. Grigoryan,
  • A. A. Kazaryan,
  • A. A. Petrosyan,
  • V. V. Harutyunyan,
  • A. O. Badalyan,
  • S. S. Pirumov,
  • V. V. Baghramyan

摘要

Abstract

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.