Investigation of Calcination Temperature Effect on Crystallographic, Morphological, Optical, and Magnetic Properties of Silver-Doped Magnesium Ferrite Nanoparticles

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Researchers at Khulna University in Bangladesh have conducted a study to investigate the effects of calcination temperature on the properties of silver-doped magnesium ferrite nanoparticles. The team synthesized the nanoparticles using the chemical co-precipitation method and calcined them at different temperatures to observe the changes in their crystallographic, morphological, optical, and magnetic properties. The study found that the sample calcined at 800°C demonstrated the best performance, with optimal semiconductor behavior and magnetic properties.

Key Takeaways:

  • The researchers synthesized silver-doped magnesium ferrite nanoparticles via the chemical co-precipitation method and calcined them at different temperatures (800°C, 900°C, and 1000°C).
  • X-ray diffraction analysis revealed crystalline sizes of 30.67, 31.09, and 41.32 nm, depending on the calcination temperature.
  • SEM images showed well-defined nanoparticle sizes ranging from 349.36 to 685.53 nm, with a variation in crystal number containing 11-17.
  • UV spectroscopy revealed optimal semiconductor behavior, with wide energy band gaps ranging from 4.77 to 5.07 eV.
  • VSM studies showed magnetic properties, with coercivity varying from 705.88 to 478.24 Oe and saturation magnetization decreasing from 65.05 to 44.41 emu/g as the crystalline size increased.
  • The sample calcined at 800°C demonstrated the best performance, with optimal semiconductor behavior and magnetic properties.
  • The study highlighted the importance of calcination temperature in determining the properties of silver-doped magnesium ferrite nanoparticles.

Statistics:

  • The crystalline sizes of the nanoparticles were measured to be 30.67, 31.09, and 41.32 nm, respectively, depending on the calcination temperature.
  • The nanoparticle sizes ranged from 349.36 to 685.53 nm, with a variation in crystal number containing 11-17.
  • The energy band gaps were measured to be 4.77 to 5.07 eV, indicating optimal semiconductor behavior.
  • The coercivity values varied from 705.88 to 478.24 Oe, and the saturation magnetization decreased from 65.05 to 44.41 emu/g as the crystalline size increased.

Sources:

  • "Investigation of calcination temperature effect on crystallographic, morphological, optical, and magnetic properties of silver-doped magnesium ferrite nanoparticles." Next Nanotechnology, 2025,7():100140. doi: 10.1016/j.nxnano.2025.100140
  • NewsRx. Khulna University Researchers Update Current Study Findings on Nanoparticles (Investigation of calcination temperature effect on crystallographic, morphological, optical, and magnetic properties of silver-doped magnesium ferrite nanoparticles). Nanotechnology Weekly. July 7, 2025; p 2244.