Green Synthesis of Co3O4nanoparticles Viaaspalathus Linearis: Physical Properties

This study reports on the bio-synthesis and the main physical properties of p-type Co3O4 nanoparticles for the first time by a completely green chemistry process using Aspalathus linearis's natural extract as an effective chelating agent. Their surface/interface and optical properties are reported. In addition to the X-ray diffraction investigations, the Raman, and infrared as well as X-ray photoelectron spectroscopies confirmed the single phase of the Co3O4 nanoparticles. As their average size can be as low as phi particle approximate to 3.6nm, the reticular atomic plans are under a slight compressive state.