<p>The composites of lanthanide-substituted ferrites find utility in a wide range of technological and biomedical applications. In this investigation, nanocomposites of ferrites (CoEu<sub>0.1</sub>Fe<sub>1.9</sub>O<sub>4</sub>)<sub>x</sub>/(Zn<sub>0.5</sub>Mn<sub>0.5</sub>Sm<sub>0.1</sub>Fe<sub>1.9</sub>O<sub>4</sub>)<sub>1-x</sub> (0.0 &lt; x &lt; 1.0) were synthesized using the sol–gel assisted combustion method a combined approach known for its cost-effectiveness, control over stoichiometry, and solid morphology at low synthesis temperatures. X-ray diffraction analysis revealed characteristic peaks of the spinel structure without impurity phases. Fourier Transform Infrared Spectroscopy showed absorption bands for metal–oxygen vibrations. Scanning electron microscopy images indicated a spherical particle morphology with an average size of 18 nm and some agglomeration. Elemental analysis through Energy Dispersive X-ray Spectroscopy confirmed the presence and spatial distribution of all elements in the samples. Finally, Ultraviolet–Visible Spectroscopy indicated a bandgap range of 0.92 to 1.07 eV, suggesting that the nanocomposites exhibit semiconductor properties.</p> Graphical abstract <p></p>

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Mixed ferrite nanocomposites: Synthesis via sol–gel autocombustion and comprehensive characterization

  • Clarissé Hernández Santana,
  • Tomás C. Hernández García,
  • Boris Kharisov

摘要

The composites of lanthanide-substituted ferrites find utility in a wide range of technological and biomedical applications. In this investigation, nanocomposites of ferrites (CoEu0.1Fe1.9O4)x/(Zn0.5Mn0.5Sm0.1Fe1.9O4)1-x (0.0 < x < 1.0) were synthesized using the sol–gel assisted combustion method a combined approach known for its cost-effectiveness, control over stoichiometry, and solid morphology at low synthesis temperatures. X-ray diffraction analysis revealed characteristic peaks of the spinel structure without impurity phases. Fourier Transform Infrared Spectroscopy showed absorption bands for metal–oxygen vibrations. Scanning electron microscopy images indicated a spherical particle morphology with an average size of 18 nm and some agglomeration. Elemental analysis through Energy Dispersive X-ray Spectroscopy confirmed the presence and spatial distribution of all elements in the samples. Finally, Ultraviolet–Visible Spectroscopy indicated a bandgap range of 0.92 to 1.07 eV, suggesting that the nanocomposites exhibit semiconductor properties.

Graphical abstract