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. © 2016 © Taylor &amp; Francis Group, LLC.

Ruban Kumar A

Department of Physics

School of Advanced Sciences

Vellore Campus

Agilandeswari K.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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Journal	Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry
Publisher	Informa UK Limited
ISSN	1553-3174
Open Access	No