Green Cobalt nanoparticles used as a photocatalytic agent for the degradation of methylene blue dye

The nanoparticles of cobalt synthesized by adding of Pomegranate peels to cobalt nitrate salt. The cobalt nanoparticles appear rapidly with change in color. The cobalt characterized by UV Visible Absorption Spectrometer and Scanning Electron Microscopes (SEM). By using spectrophotometer, the wavelength of the plasmon was around 350-400 nm, while SEM shows the size of cobalt nanoparticles around 25 nm. The prepared cobalt nanoparticles were used for degradation of methylene blue dye in polluted water.