Synthesis, Characterization, Optical, and Magnetic Properties of Co₃O₄ Nanoparticles by Quick Precipitation

Abstract

Quick precipitation method is simple and efficient to obtain cobalt oxide (Co₃O₄) nanoparticles. The prepared cobalt oxide was characterized by powder X-ray diffraction pattern confirmed the formation of single phase Co₃O₄. Scanning electron microscope image indicates the sphere like morphology and its grain size will be in the range of 50–100 nm. UV-DRS optical property of Co₃O₄ shows a band gap in the energy range of 3.50 eV. A vibrating sample magnetometer for the analysis of Co₃O₄ sample showed it to behave as a soft ferromagnetic material.

Keywords:

• cobalt oxide
• optical properties
• magnetic properties

Funding

The authors thank VIT University for providing excellent research facilities.