FAST AND SIMPLE SYNTHESIS OF FERROMAGNETIC IRON OXIDE NANOPARTICLES BY A PLASMA-SOLUTION INTERACTION METHOD

Abstract

This paper presents a simple, fast and environmentally friendly method for preparing Fe₃O₄ nanoparticles. Fe₃O₄ nanoparticles are synthesized by plasma-solution interaction at atmospheric pressure using ferrous and ferric solution. The characteristics of Fe₃O₄ nanoparticles were investigated by X-ray diffraction methods (XRD), transmission electron microscopy (TEM) and vibration sample magnetometer (VSM). Magnetite nanoparticles obtained were spherical in shape with an average size of 11.5 nm and saturation magnetic (Ms) of Fe₃O₄ sample at room temperature was 52.04 emu/g. Therefore, Fe₃O₄ nanoparticles are suitable to remove Reactive Red 21 (RR21) pigment in water by a simple magnetic separation process. The RR21 adsorption efficiency of Fe₃O₄ nanoparticles was achieved up to 75.28%.