Investigation of the Chemical Interactions in the Na2MoO4-Glycerol-ZrOCl2-ErCl3-H2O System and Luminescent Characteristics of the Resulting Solid Precipitate
DOI:
https://doi.org/10.18321/ectj1693Keywords:
Rare-earth elements, Glycerol, Luminescent, Hydrocomposite, LanthanideAbstract
The paper presents the synthesis of a solid hydrocomposite material in a water-glycerol medium based on [MoO4]2–, Zr4+, Er3+, and Na ions in a 1:1:1:3 molar ratio using directional mixing of solutions in a U-shaped vessel. X-ray diffraction analysis confirmed the partially amorphous structure of the synthesized product. Infrared spectroscopy revealed the presence of bound water molecules and characteristic functional groups, including hydroxyl, aliphatic, and metal-hydroxide fragments, as well as bands characteristic of [MoO4]2– ions. Elemental and atomic emission analyses confirmed the presence of all the initial ions and revealed the molar ratio of the elements. X-ray microanalysis demonstrated chemical heterogeneity of the solid phase, while electron microscopy revealed an overall morphological homogeneity of the particles. Investigation of the luminescent properties showed the superposition of several peaks in the visible spectrum associated with transitions in the 4f shell of erbium ions, indicating the material's potential for applications in biomedicine, sensors, and optoelectronics. Thermal analysis further confirmed the presence of chemically bonded water molecules. The obtained results provide a basis for further investigation and targeted modification of the properties of such hydrocomposite systems.
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