APL008-3-2 Characterization and Comparison of Magnetite Nanoparticles Prepared by Coprecipitation and Autocombustion Techniques

Abstract

From the need to produce nanoparticles (NPs) with effective crystallite size that are required for many applications as waste water purification, magnetite nanoparticles (Fe₃O₄) were prepared by coprecipitation and sol-gel autocombustion techniques. The samples were characterized by x-ray diffraction (XRD) and scanning electron microscope (SEM). From XRD analysis, the sample prepared by coprecipitation technique showed smaller crystallite size than that prepared by sol-gel and this result is agreed with that from SEM images; where by XRD results M1 and M2 crystallite sizes are nearly 42nm and 32 nm respectively, while by SEM results they are nearly 45nm and 36nm respectively. Also it was evidenced by SEM images that the prepared NPs were distributed homogenously with some clusters attributed to the sintering process.