Synthesis and characterization ofCu1-xCoxFe2O4 nanocomposite ferrites

Author(s): Nasser K.Hejazy

In the present study, cobalt substituted copper ferrite nanocomposite have been investigated. A series of co-doped copper ferrites with nominal compositions Cu1-xCoxFe2O4 (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) were synthesized by the co-precipitation oxalate rout method. The synthesized product has been characterized by powderX- ray (XRD), Transition electronmicroscopy (TEM), UV visible spectrophotometry, energy dispersive X-ray spectroscopy (EDX) and photoluminescence (PL). TheXRDanalysis reveals that the samples were cubic ferrite with average particle size in the range 12.1- 13.5 nm. The micrographs obtained from TEM analysis showed that the synthesized materials have a spherical shape with an agglomeration of the individual particles. The energy dispersive X-ray spectrometric analysis revealed that the observed molar ratios of different components of the samples are in close agreementwith their nominal compositions. The optical band gap values for pure copper ferrite and doped copper ferrite nanoparticles was found to be 3.72 -3.03 eV, respectively. PLspectra of pure copper ferrite and doped copper ferrite nanoparticles showed blue emission at 460 nmand green emission at 520 nm.

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