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<p>In the present work, CoSb<sub>2</sub>O<sub>6</sub> nano-particles have been synthesized by Solvothermal process by varying synthesis conditions. A systematic evolution of CoSb<sub>2</sub>O<sub>6</sub>&#xa0;phase formation as a function of varying calcination temperature is analyzed by Powder X-ray Diffraction (pXRD). XRD data reveals the pure CoSb<sub>2</sub>O<sub>6</sub>&#xa0;phase with tetragonal structure at calcination temperature of 800&#xa0;°C and above. The morphological investigation of synthesized products were analyzed by&#xa0;Field Emission Scanning Electron Microscopy&#xa0;(FESEM). Energy-dispersive X-ray spectroscopy (EDS) data reveals the purity and elemental composition of the as-synthesized nanostructures. Transmission Electron Microscopy (TEM) confirms the nanoparticle size and crystallinity. X-ray photoelectron spectroscopy (XPS) analysis justifies oxidation state and provides insight into the surface chemistry. Raman spectroscopy identifies characteristic vibrational modes, indicating the stability of the oxide framework. The spectroscopic studies by Fourier Transform Infrared spectroscopy (FTIR) provide information about the presence of various functional groups in COSb<sub>2</sub>O<sub>6</sub>&#xa0;nanoparticles in the range of 400 – 4000&#xa0;cm<sup>−1</sup>. UV–Visible absorption spectra were used to investigate the optical properties of CoSb<sub>2</sub>O<sub>6</sub>. Thermogravimetric analysis and Differential Thermal Anlysis (TGA/DTA) analysis further elucidate the materials thermal stability and decomposition profile. CoSb<sub>2</sub>O<sub>6</sub> nano-particles are expected to exhibit excellent electrochemical and photocatalytic applications. </p>

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Influence of calcination temperature on the structural evolution and optical properties of CoSb2O6 nanomaterials synthesized by solvothermal method

  • 期刊论文

  • 发表日期：

    2025年9月18日

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  • J. Anitha,
  • M. Uday Kumar,
  • R. Swetha,
  • B. V. Sahana,
  • Ramappa S. Kuri,
  • Meghashree Vinod Shetter,
  • Latha Kumari

摘要

In the present work, CoSb2O6 nano-particles have been synthesized by Solvothermal process by varying synthesis conditions. A systematic evolution of CoSb2O6 phase formation as a function of varying calcination temperature is analyzed by Powder X-ray Diffraction (pXRD). XRD data reveals the pure CoSb2O6 phase with tetragonal structure at calcination temperature of 800 °C and above. The morphological investigation of synthesized products were analyzed by Field Emission Scanning Electron Microscopy (FESEM). Energy-dispersive X-ray spectroscopy (EDS) data reveals the purity and elemental composition of the as-synthesized nanostructures. Transmission Electron Microscopy (TEM) confirms the nanoparticle size and crystallinity. X-ray photoelectron spectroscopy (XPS) analysis justifies oxidation state and provides insight into the surface chemistry. Raman spectroscopy identifies characteristic vibrational modes, indicating the stability of the oxide framework. The spectroscopic studies by Fourier Transform Infrared spectroscopy (FTIR) provide information about the presence of various functional groups in COSb2O6 nanoparticles in the range of 400 – 4000 cm−1. UV–Visible absorption spectra were used to investigate the optical properties of CoSb2O6. Thermogravimetric analysis and Differential Thermal Anlysis (TGA/DTA) analysis further elucidate the materials thermal stability and decomposition profile. CoSb2O6 nano-particles are expected to exhibit excellent electrochemical and photocatalytic applications.