Removal of chromium from aqueous solutions by magnetic nanoparticles

In environmental applications, nano-based iron materials are turning out to be remarkably effective tools for cleaning up contaminated soil and groundwater. In this work nanoscale magnetit particles were produced by chemical coprecipitation method. Received particles were physically and chemically characterised by XRD, XRF, FT-IR, SEM, zeta potatial, pH titration and BET surface area analysis. Chromium(VI) removal by received adsorbant and removal kinetics were investigated in agitated batch reactor and the Langmuir and Freundlich adsorption isotherms were developed. Keywords: Nano particles, magnetit, chromium removal, adsorption, zeta potantial