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Keywords:

  • Bismuth iron oxides;
  • Magnetic materials;
  • Nanoparticles, magnetic;
  • Perovskites;
  • Photocatalysis
Thumbnail image of graphical abstract

Polycrystalline BiFeO3nanoparticles (size 80–120 nm) are prepared by a simple sol–gel technique. Such nanoparticles are very efficient for photocatalytic decomposition of organic contaminants under irradiation from ultraviolet to visible frequencies. The BiFeO3 nanoparticles also demonstrate weak ferromagnetism of about 0.06 μB/Fe at room temperature, in good agreement with theoretical calculations.