Abstract
BFO-T (BiFeO3) nanoparticles have been prepared via auto-combustion technique using tartaric acid as a chelating agent. Role of chelating agent and effect of different calcination temperatures on the structural, morphological, optical, thermal and magnetic behaviour were demonstrated. The properties related to phase structure, surface morphology, thermal stability were investigated by XRD, TEM and TGA respectively. Fourier Transformed Infrared spectra of BFO-T nanoparticles calcinated at different temperatures showed various types of bond formations in the samples. The average particle size of BFO-T nanoparticles were found to be in the range 6-30 nm at different calcinated temperature. The optical band gaps of pure BFO-T nanoparticles were estimated using the Tauc’s equation which was found to be 2.20 eV. Magnetic measurement of pure BFO-T nanoparticles indicated ferromagnetic behavior with saturation magnetization of 0.36 emu/g.
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