Synthesis of Cerium Oxide Nanoparticles Using Chemical Precipitation Method and Study Their Properties

Abstract

In these studies, cerium nitrate ($\text{Ce(NO}_3)_3 \cdot 6\text{H}_2\text{O}$), a raw material, and sodium hydroxide, a precipitating agent, were employed to create cerium oxide ($\text{CeO}_2$) nanoparticles with a diameter of 10-39 nm. XRD, FT-IR, FE-SEM, EDS, and DLS were used to analyze $\text{CeO}_2$ nanoparticles that had already been synthesized. The cerium oxide nanoparticles underwent calcination at temperature of 600 °C. Using Debye Scherrer's Equation, the crystal volume was calculated and determined to be between 8 and 11 nm. Cerium oxide nanoparticle production was confirmed by the FTIR spectrum's absorption (Ce-O stretch) band at 540 $\text{cm}^{-1}$. The spherical shape of the $\text{CeO}_2$-NPs structure at 39 nm could be seen in the FE-SEM pictures, and the polycrystalline nature of $\text{CeO}_2$-NPs could be shown in the particular area diffraction pattern. The element content was given by the EDS result (Ce = 76.5 , O = 16). According to studies, $\text{CeO}_2$ NPs have an average size of around 154 nm.