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  • Title: Decolourization of Methyl Orange using Fenton-like mesoporous Fe(2)O(3)-SiO(2) composite.
    Author: Panda N, Sahoo H, Mohapatra S.
    Journal: J Hazard Mater; 2011 Jan 15; 185(1):359-65. PubMed ID: 20934248.
    Abstract:
    Rapid decolourization of Methyl Orange by Fenton-like mesoporous Fe(2)O(3)-SiO(2) catalyst has been reported. The effect of various parameters such as initial pH, initial H(2)O(2) concentration, Fe content in the catalyst and initial dye concentration on decolourization process were studied. The results show that 20mg of mesoporous Fe(2)O(3)/SiO(2) composite (with Si/Fe=10) was sufficient to decolourize 0.6 mg/ml of Methyl Orange in presence of 2 ml of H(2)O(2) at an initial pH of 2.93 within 20 min. The pH range for effective decolourization (≥90%) was found to be 1-3. Leaching tests indicated that the activity of the catalyst was almost unaffected up to three consecutive cycles although ≤0.2 ppm of Fe ion was leached into treated water in each run.
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