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IJC-A Vol.51A(06) [June 2012] >

Title: Novel Fe encapsulated montmorillonite K10 clay for photo-Fenton mineralization of Acid Yellow 17
Authors: Muthuvel, I
Krishnakumar, B
Swaminathan, M
Keywords: Photochemistry
Dye degradation
Hetero-Fenton degradation
Azo dyes
Acid Yellow 17
Montmorillonite K10 clay
Wastewater treatment
Issue Date: Jun-2012
Publisher: NISCAIR-CSIR, India
Abstract: A novel Fe encapsulated montmorillonite K10 clay has been prepared by solid state dispersion method and characterized by FT-IR, SEM-EDS, ICP-AES and BET surface area measurements. XRD analysis suggests that iron in the catalyst exists as FeOOH. ICP-AES analysis shows increase in Fe(III) concentration from 35 to 457 ppm on immobilization of Fe on montmorillonite K10 clay. EDS analysis of SEM images also confirm the presence of Fe in the catalyst. The catalyst has been applied for photodegradation of Acid Yellow 17 in the presence of H2O2 under UV light. Effect of pH on mineralization of the dye has been studied in detail. The initial pH influences not only the photocatalytic activity of the catalyst but also the Fe leaching from the catalyst. Unlike homo-Fenton catalysts, the proposed catalyst exhibits good activity and stability even at neutral pH 7 (75 % at 60 min irradiation). Further, lowest leaching of Fe(III) at pH 7 makes the catalyst suitable for dye wastewater treatment at neutral pH.
Page(s): 800-806
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.51A(06) [June 2012]

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