A Review on Bio-Synthesized Co_3o_4 Nanoparticles Using Plant Extracts and Their Diverse Applications

Developing a rapid, reliable and ecoaccommodating methodology for the synthesis of metal/metal oxide nanoparticles (nps) is an important step in the area of nanotechnology. cobalt oxide nanoparticles (co_3o_4 nps) have been widely studied due to their potential applications including, antibacterial, antifungal, electrochromic sensors, heterogeneous catalysis, and energy storage devices. due to the large rate of perilous chemicals employed in the physical and chemical production of these nps, green methods employing the use of plants, fungus, algae, and bacteria have been adopted. however, plantmediated synthesis of metal nps has been developed as a substitute to defeat the restrictions of conventional synthesis approaches such as physical and chemical methods. biomolecules, such as tannins, saponins, proteins, amino acids, steroids, enzymes, flavonoids, and vitamins from several plant extracts have been used as a stabilizing and reducing agents for the synthesis of co_3o_4 nps. recently, several attempts were made to develop plantmediated synthesis methods to produce stable, costeffective, and ecoaccommodating co_3o_4 nps. in this review, a comprehensive study was conducted on synthesis, characterization, and various applications of co_3o_4 nps produced using various plant sources.