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Article – Journal of Nanoscience and Technology

Journal of Nanoscience and Technology, Volume 5,Issue 3,2019 Pages 734-737


Biosynthesis of Cobalt Oxide Nanoparticles - A Short Review
S. Alwin David*, V. Veeraputhiran, C. Vedhi

https://doi.org/10.30799/jnst.S01.19050308

This work is licensed under a Creative Commons Attribution 4.0 International License

This short review article presents a summary of ecofriendly ways to synthesize cobalt oxide (Co3O4) nanoparticles using biomaterials like plant extract, bacterium and fungus. Currently, researchers have focused their concentration on the biosynthesis of nanoparticles using biomaterials containing phenols, carbonyls, amines, carbohydrates, proteins and amino acids which act as bio-templates, reducing agents, stabilizing agents, capping agents and chelating agents for nanoparticles. This article also discussed the reports of characterization of cobalt oxide nanoparticles by UV-Vis spectroscopy, diffuse reflectance spectroscopy (DRS), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), selected area electron diffraction (SAED), scanning electron microscopy (SEM), high resolution scanning electron microscopy (HRSEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), atomic force microscopy (AFM) and Brunauer - Emmett -Teller (BET) analyzer which were carried out by various researchers. The applications of these biosynthesized cobalt oxide nanoparticles in a wide range of potential zones are listed including antibacterial activity, photo catalyst, sensor and supercapacitor.



Keywords: Biosynthesis; Co3O4 Nanoparticles; Spectral Characterizations;

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