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A novel method for the synthesis of Fe3O4–TiO2 nanoparticles is described, where the magnetic induction heating of Fe3O4 nanoparticles is employed to calcine a metal oxide precursor gel. Magnetite Fe3O4 nanoparticles were mechanically dispersed in the as-prepared TiO2 gel and subsequently submitted to the action of an ac magnetic field (frequency 313 kHz, amplitude 340 Oe, induction times, t = 10,...
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