ADSORPTION OF CE(III) METAL ION USING MORINGA OLEIFERA LEAF-FE3O4 COMPOSITE

• Main Author: Aliya Astuti, Nur
• Format: Final Project
• Language: Indonesia
• Subjects: Kimia
• Online Access: https://digilib.itb.ac.id/gdl/view/65030
• Institution: Institut Teknologi Bandung

Requirement for rare earth metals in the world has recently increased significantly. This is because it has become a very strategic commodity for future technology. Cerium metal is currently used as metal alloys, glass polishing powders, catalysts and LED. Lanthanide waste from industrial processes can cause environmental problems and accumulate in the human body when inhaled or ingested from the food chain. Adsorption is an effective, economical and easy method for the removal of Ce(III) ions in wastewater. In this study, moringa leaf-Fe3O4 (DKM) composite was made to remove Ce(III) ions. There were three steps carried out, the synthesis of the DKM adsorbent with Fe(II), Fe(III) and Moringa leaf as precursors, the characterization of the DKM adsorbent using Fourier Transform Infrared Spectroscopy (FTIR) and X-ray diffraction (XRD), and the last is adsorption studies using batch method. Adsorption studies were carried out to determine the optimum conditions of the pH and contact time. Adsorption reached the optimum condition at pH 6 and contact time of 4 hours. The adsorption of Ce(III) ions by the DKM composite adsorbent followed pseudo-second-order adsorption kinetics model and the Freundlich adsorption isotherm model.