Detection Of Manganese (II) Ions Present In Industrial Waste Water Using Cobalt Nanoparticles Synthesized Biologically With Mangiferaindica Leaf Extract:- Okorie Francis C.

ABSTRACT

This study was focused on the synthesis of cobalt nanoparticles using mangifera indica leaf extract and the characterization of the particles using UV-Vis spectroscopy, XRD, FT-IR, and SEM. The XRD results showed the formation of cobalt nanoparticles, crystalline in nature, with an average size of 25—40nm. The FT-IR carried on the leaf extract reviewed some functional groups responsible for reduction of cobalt ions to cobalt nanoparticles while the SEM indicates that the synthesised Cobalt nanoparticles possesses a cubic, pentagonal and irregular in shape with a smooth surface. The method of detecting Mn2+ ions using the colloidal cobalt nanoparticles was discussed.The minimum and maximum detection limit were found to be 5 and 25mM of Mn (II) ions, respectively. The obtained results encourage the use of economical synthesis of cobalt nanoparticles in the development of nanosensors to detect the pollutants present in industrial effluents.