Open AccessHETEROGENEOUS FENTON CATALYTIC REACTION FOR DECOLOURIZATION OF METHYL ORANGE
Author(s) -
Reeja Elsa John,
Sandra Sebastian,
Sandhya K. Nair,
Nikhi Maria Raju,
David K. Daniel
Publication year - 2020
Publication title -
international journal of engineering applied science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-2143
DOI - 10.33564/ijeast.2020.v04i09.031
Subject(s) - methyl orange , catalysis , fenton reaction , chemistry , agent orange , orange (colour) , organic chemistry , food science , photocatalysis , political science , law
Oxidation by Fenton reaction of methyl orange dye was carried out using Fe impregnated on mangosteen shell as heterogeneous catalyst. The catalyst was prepared by wet impregnation method and characterized using SEM. The effectiveness of this catalyst in the decolourization of dye as well as the influence of hydrogen peroxide concentration, catalyst loading and pH on the decolourization efficiency was examined. In the Fe loaded mangosteen catalyst, maximum decolourization efficiency of 93.3% was obtained at [H2O2] = 260 mM, catalyst loading = 0.15 g/l and pH = 7.0 for an initial dye concentration of 30 ppm in 180 minutes at room temperature. These findings demonstrate that the Fenton process is a promising technique for decolourization of methyl orange dye from aqueous solutions. The system is economic and environment friendly as agricultural waste material is used as a heterogeneous catalyst. The prepared catalyst can be reused for successive cycles because of their stability however there was no significant leaching of iron. Keywords— Fenton, catalyst, decolourization, methyl