Effective Decolorization and Adsorption of Contaminant from Industrial Dye Effluents using Spherical Surfaced Magnetic (Fe304) Nanoparticles.

Treatment of highly concentrated Industrial dye stuff effluents released in the environment is the major issue faced in the era of waste management as well as in water pollution. Though there is availability of conventional techniques in large numbers, there is a need of efficient and effective advance technologies. In account of that, Nanotechnology plays a prominent role to treat the heavy metals, organic and inorganic contaminants using smart materials in nano regime (1 -100 nm). Among these nanomaterials like Iron Oxide (Fe₃O₄, magnetic nanoparticle) is one of the most promising candidates to remove the heavy metals from the industrial effluent. Fe₃O₄ is the widely used smart material with magnetic property having high surface area; high surface to volume ratio provides more surface for the chemical reaction for the surface adsorption. Fe₃O₄ nanoparticles have been synthesized using sonochemical method using ultra frequency in aqueous solution under optimized conditions. The as-synthesized nanoparticle was analyzed using different characterization tool. The Transmission Electron microscope (TEM) images revealed 10-12 nm spherical shape nanoparticles; crystal phase and surface morphology was confirmed by X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM), respectively. The functional group were identified by Fourier Transform-Infra Red Spectroscopy (FT-IR), revealed the bending and stretching vibrations associated with Iron Oxide nanoparticle. In present study, for the efficient removal of contaminants, different concentration (10-50 ppm) of dye stuff effluent has been prepared and subjected to adsorption and decolourization at definite time intervals with Fe₃O₄ nanoparticles. The concentration of Iron oxide and the time (45 mins) was kept fixed for the reaction whereas the concentration of dye stuff effluent was kept varying. It was found that the spherical shaped Fe₃O₄ proved to be the potential material for the adsorption of corresponding contaminants due to its highly active adsorbing surfaces. The result concluded that the effective adsorption and decolourization of contaminants is observed in different concentration with the maximum time period of 45 mins with the optimized concentration of Fe₃O₄. [ABSTRACT FROM AUTHOR]