Iranian Nanotechnology Society International Journal of Nanoscience and Nanotechnology 1735-7004 13 2 2017 05 01 Spherical Surfaced Magnetic (Fe3O4) ‎Nanoparticles as Nano Adsorbent Material ‎for Treatment of Industrial Dye Effluents ‎ 169 175 25615 EN Suriyaprabha R. School of Nano Sciences, Central University of Gujarat, Gandhinagar, Gujarat, India- ‎‎382030‎ S. H. Khan ‎School of Nano Sciences, Central University of Gujarat, Gandhinagar, Gujarat, India- ‎‎382030‎ B. Pathak School of Environment and Sustainable Development, Central University of Gujarat, ‎Gandhinagar, Gujarat, India- ‎ M. H. Fulekar School of Environment and Sustainable Development, Central University of Gujarat, ‎Gandhinagar, Gujarat, India- ‎ Journal Article 2016 08 26 <em>   Magnetic nanoparticles are of great interest for researchers from a wide range of disciplines, including nano-magnetic fluids, nanocatalysis, biomedical applications, magnetic resonance imaging, and specifically environmental remediation. Nanomaterial like Iron Oxide (Fe₃O₄) is one of the most promising candidates to remove heavy metals and dyestuffs from the industrial effluent. Among these, Fe₃O₄is the extensively used smart material with magnetic properties that having high surface area. High surface to volume ratio provides more surfaces for chemical reaction for the surface adsorption.  Fe₃O₄ nanoparticles have been synthesized using a sonochemical method using ultra frequency in aqueous solution under optimized conditions. The as-synthesized nanoparticle was analyzed using different characterization tools. The Transmission Electron microscope (TEM) images revealed 10-12 nm spherical shape nanoparticles; the crystalline structure was confirmed by X-Ray Diffraction (XRD). The functional groups were identified by Fourier Transform-Infra Red Spectroscopy (FT-IR), revealed the bending and stretching vibrations associated with Iron Oxide (Fe-O) nanoparticles.  In the present study, for the efficient adsorption of dyestuff effluents, the samples collected were subjected to adsorption and decolorization at definite time intervals with Fe₃O₄nanoparticles. The amount of Iron oxide was kept constant for the reaction and the concentrated dyestuff effluents were diluted ten times and observe the absorption in UV –Vis Spectroscopy. It was found that the spherical shaped Fe₃O₄ proved to be the potential material for the adsorption of dyestuff effluents. The result concluded that the effective adsorption and decolorization of contaminants is observed in the maximum time period of 30 minutes with the minimum amount of Fe₃O₄.</em> https://www.ijnnonline.net/article_25615_9a469156f5e380345f69dba2862d44e0.pdf