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ABSTRACT

Preparation and Characterization Fe-Natural Zeolite as Heterogeneous Catalyst in Photo Fenton for Degradation Phenol

Jayanudin, Indar Kustiningsih,

ABSTRACT

Fe catalyst immobilization for Fenton process can use natural zeolite by impregnation method. Natural zeolite used comes from Bayah-Indonesia. The purpose of this research was the characterization of natural zeolite as a catalyst support Fe for degradation of phenol using the process of photo Fenton. Preparation of Fe-natural zeolite (Fe-NZ) catalyst has been made by activating natural zeolite using a solution of 5M NaOH at 70 °C for 60 minutes, after that washed with aquadest until neutral and dried at 100 °C for 1 hour. Natural zeolite has been activated and then analyzed using Brauner Emment Teller (BET) to determine the size of the pores.Catalyst of Fe-NZ made from 5 g of the activated natural zeolite impregnated in 30 mL of 0.075M Fe(NO3)3.9H2O and stirred using a magnetic stirrer for 180 minutes, then filtered and calcinated at a temperature of 500oC for 4 hours. Characterization of Fe-NZ catalyst was performed using scanning electron microscope (SEM) and X-ray fluorescence (XRF).The effectiveness of Fe-NZ catalyst for the process of photo Fenton can be done to degrade phenol.Fe-NZ of 5 g, 10 g and 15 gwas included in the reactor which was equipped with a UV lamp, the reactor containing H2O2and 50 ppm phenol with a ratio of 4: 1, 5:1 and 6:1 pH in the reactor was 5 by adding HCl or NaOH. Phenol degradation process carried out for 120 minutes with samples for analysis every 30 minute using UV-vis spectrophotometer with a wavelength of 300 nm.The results obtained characteristics of the largest surface area is 23.46 m2/g and pore size 9Å. The amount of Fe as the greatest impregnation is 7.73%. Based on the result of SEM obtained that morphology of zeolite after activation more neatly than before activation. Increase the amount of Fe-NZ catalyst and the ratio of H2O2 to phenol can increase the degradation of phenol Keywords: Impregnation, natural zeolite, photo Fenton, phenol

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