PHYTOPRODUCTION OF IRON NANOPARTICLES FOR METHYL ORANGE REMOVAL AND ITS OPTIMIZATION STUDIES

Abstract

In the present study, iron nanoparticles have been synthesized using the leaf extract of potential weed Datura inoxia to evaluate their feasibility for methyl orange removal. This method approves that the green synthesis method must be adopted for the more efficient and rapid synthesis of metal nanoparticles. A simple process of bio reduction has been involved, the leaf extract of Datura inoxia used as a precursor for reducing metal iron. The UV- visible spectral analyses for iron nanoparticles have shown a peak at 240 nm wavelength. Spherical shaped iron nanoparticles are formed as shown by transmission electron microscopy. Batch studies were investigated for optimization study of methyl orange removal on selected parameters i.e., pH (1-10), adsorbent dose (0.02-0.14g), initial dye concentration (5-100pm), contact time (15-120 minutes) and temperature (20- 50o C). The result from the present study approves easy and fast dye removal of 98 % with kinetic data following a second order removal rate. The thermodynamics parameters supported the spontaneity with a negative value of ?G i.e., -14.87 kJ mol-1 and exothermic (?H -7.094 kJ mol-1) nature of the reaction. Thus, it can be concluded that the use of Datura inoxia for the phyto production of iron nanoparticles is efficient for various commercial applications in environment sector