Synthesis, structural characterisation and optical properties of nanoparticles of MTiO₃ (M = Ni and Co) obtained by the chemical method
by R. Vijayalakshmi; V. Rajendran
International Journal of Nanoparticles (IJNP), Vol. 6, No. 1, 2013

Abstract: In this paper, we report on the obtention of nanoparticles of nickel and cobalt titanates MTiO₃ (M = Ni and Co) with type-ilmenite rhombohedral structure prepared by the chemical method and heat-treated at 500°C for 3 h. These nanoparticles were characterised by X-ray diffraction, Fourier-transform infrared, scanning electron microscopy, transmission electron microscopy, ultra violet-visible absorption spectroscopy and photoluminescence measurements. A TEM image reveals that the as-synthesised ultra-fine samples consist of florets of cauliflower and spherical-like morphology of crystalline particles from 15 to 30 nm, which is weakly, aggregated. The optical properties of the as-prepared sample were investigated. The results suggest that the size, morphology and optical properties are enhanced in both the metal titanates MTiO₃ (M = Ni and Co) nanoparticles.

Online publication date: Mon, 31-Mar-2014

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