Synthesis And Characterization Of Al2O3 Added Fe3O4 Nanoparticles Via Sol Gel Technique

Chew, Ke Chin (2019) Synthesis And Characterization Of Al2O3 Added Fe3O4 Nanoparticles Via Sol Gel Technique. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The magnetite (Fe3O4) nanoparticles added with alumina (Al2O3) nanoparticles were synthesized by using a simple, non-expensive sol-gel method. This method consumed less energy and time than other conventional synthesis methods for processing of higher purity and higher surface area nanoparticles. Due to the very clean sol-gel method, microscopic and macroscopic pores could be eliminated. The effect of the difference compositions of Al2O3 nanoparticles which were 0,2,4,6,8,10 wt.% on the properties of Fe3O4 nanoparticles had been investigated and evaluated. Thus, the synthesized nanoparticles were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and magnetic test. The structure of the synthesized nanoparticles obtained by sol-gel method were studied using an X-ray diffraction (XRD) technique. The particle size and morphology of synthesized nanoparticles were investigated by scanning electron microscopy (SEM). Subsequently, the magnetic properties of the synthesized nanoparticles were investigated by alternating gradient magnetometer (AGM). This work indicated that the sol-gel reaction is an effective method for introducing Al2O3 as nanoparticles to be homogeneously distributed in Fe3O4 nanoparticles hence reducing the magnetic properties of Fe3O4.

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