Facile and green synthesis of highly dispersed cobalt oxide (Co 3O 4) nano powder: Characterization and screening of its eco-toxicity

摘要

A novel green synthesis of cobalt oxide (Co3O4) nanoparticles using latex ofCalotropis proceravia simple precipitation method at room temperature was investigated. An extensive characterization of the product was carried out using X-ray diffractometry (XRD), Differential scanning calorimetry (DSC), Transmission electron microscopy (TEM), Energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR) and UV–Visible spectroscopy. The results of the characterization confirmed that the synthesized nanomaterial is highly dispersed. TEM analysis revealed that the nano particles are having an average size around 10?nm. The eco-toxic investigation suggested that the particles are non-toxic and safe towards the environment. This green strategy proves to be an effective, fast, simple and cost-effective approach for the synthesis of Co3O4nanoparticles for various applications.