Hydrothermal synthesis of cobalt oxide nanoparticles: Its optical and magnetic properties
2014
Cobalt oxide (Co3O4) nanoparticleshave been synthesized by hydrothermal method using mixture of cobalt(II)chloride, Triton X-100 and KOH in an autoclave at 180 °C for 6 h followed by heating at 400 oC for 3 h in air. The product have been characterized by Fourier transform infrared (FT-IR), UV-Vis spectroscopy, powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Optical properties of the Co3O4nanoparticleshave revealed the presence of two band gaps, viz.2.9 and 2.4 eV. Data fromvibrating sample magnetometer (VSM) confirm the purity of the product along with single phase paramagnetic behavior.
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