#TITLE_ALTERNATIVE#

• Main Author: EFFIDA ZANATH (NIM : 10509018) ; Pembimbing, Prof. Dr. Buchari, HUSNA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/18659
• Institution: Institut Teknologi Bandung

Zeolite is a micropore material which can be found in nature or synthesized. Because of their adsorption, ion exchange and porosity properties, zeolite NaA crystals are widely applied in various applications such as household products, aquaculture and petrochemical-related industry. Generally, zeolite was synthesized by hydrothermal method. This method has several disadvantages, such as low product rendement and low efficiency by high temperature process. In this study, NaA zeolite was synthesized by room temperature crystallization using rice husk ash (RHA) as silica source and sodium aluminate (NaAlO2). The effect of crystallization time was studied. IR spectroscopy, XRD and SEM-EDX were performed to investigate crystal structure, surface morphology and composition of the final products. Physisorption N2 was performed to observe surface area and pore distribution. Cation exchange capacity (CEC) measurement was performed to determine zeolite performance as cation exchanger material. Difractogram data indicated that 7 days product has a highest crystallinity. BET analysis indicated the product was a macropore material, with highest at 3 days and decreased with the prolonged crystallization time. CEC measurement of 7 days product for several metal ions showed a value of 2.45 meqg-1 for Ca2+, 1.84 meqg-1 for K+, 2.60 meqg-1 for Cu2+ and 3.94 meqg-1 for Fe3+.