ADSORPTION OF CE(III) IONS USING FE3O4 NANOPARTICLE-TEA LEAVES COMPOSITE ADSORBENT

• Main Author: Huwaida, Firyal
• Format: Final Project
• Language: Indonesia
• Subjects: Kimia
• Online Access: https://digilib.itb.ac.id/gdl/view/65032
• Institution: Institut Teknologi Bandung

Cerium is one of the most abundant rare earth metals in the earth's crust. Cerium with high purity is needed in various industries as a control of sulfur content in steel, pyrophoric alloys (ferrocerium), ceramic dyes, autocatalysts, refining powders, and various benefits. The increasing application of these rare earth metals, particularly cerium, has led to high release of rare earth metal ions into the environment as waste. Exposure to cerium can cause damage to cell membranes and has adverse effects on the reproductive and nervous systems. Therefore, the process of removing and recovering the Ce(III) ion needs to be carried out. In this study, the separation of Ce(III) ions was carried out using the adsorption method with a Fe3O4 nanoparticle-tea leaves composite adsorbent. The adsorbent was characterized using Fourier Transform Infrared Spectroscopy (FTIR) and X-Ray Diffraction (XRD). The Fe3O4 nanoparticle-tea leaves composite has an average diameter of 8.103 nm. The optimum adsorption parameters to adsorb Ce(III) ions were achieved at pH 6 and a contact time of 5 hours using the batch method. The process of adsorption of Ce(III) ion by Fe3O4 nanoparticle-tea leaves composite followed the Freundlich isotherm model and pseudo second order kinetic model.