Elimination of the methyl blue from wastewater by advanced oxidation process in the presence of an heteropolyanion of Dawson type as a catalyst

Elimination of the methyl blue from wastewater by advanced oxidation process in the presence of... This study involves the synthesis of a ferric compound called heteropolyanion of Dawson type (α 2P2W17FeO61)7−, which it is aimed to apply as a catalyst in an advanced oxidation process, in the presence of H2O2 to remove an organic pollutant, methyl blue (MB) located in the wastewater of textile industries. The study of the kinetics of the oxidation reaction was followed in aqueous solution in the presence of heteropolyanion (α 2P2W17FeO61)7−. To improve the kinetics of degradation of MB, different parameters controlling this reaction were varied. Among these parameters were the pH of the initial aqueous solution, the mass of the catalyst, the concentration of the oxidant (H2O2), the concentration of the dye, and temperature. The optimal conditions for a maximum rate conversion (100 %) are: pH 3, mass of the catalyst = 0.1 g, [H2O2]o = 0.4 mM, [M.B]o = 6 ppm, and temperature = 35 °C. The effects of salts present (chlorides and sulfates) in solution of dye was studied. The effects of the nature of the catalyst such as (α 2P2W18O62)6−; (α 2P2W17O61)10−; (α 2P2W17CoO61)8−; and (α 2P2W15Mo2FeO61)7− on the dye oxidation at room temperature were evaluated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Elimination of the methyl blue from wastewater by advanced oxidation process in the presence of an heteropolyanion of Dawson type as a catalyst

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Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1304-z
Publisher site
See Article on Publisher Site

Abstract

This study involves the synthesis of a ferric compound called heteropolyanion of Dawson type (α 2P2W17FeO61)7−, which it is aimed to apply as a catalyst in an advanced oxidation process, in the presence of H2O2 to remove an organic pollutant, methyl blue (MB) located in the wastewater of textile industries. The study of the kinetics of the oxidation reaction was followed in aqueous solution in the presence of heteropolyanion (α 2P2W17FeO61)7−. To improve the kinetics of degradation of MB, different parameters controlling this reaction were varied. Among these parameters were the pH of the initial aqueous solution, the mass of the catalyst, the concentration of the oxidant (H2O2), the concentration of the dye, and temperature. The optimal conditions for a maximum rate conversion (100 %) are: pH 3, mass of the catalyst = 0.1 g, [H2O2]o = 0.4 mM, [M.B]o = 6 ppm, and temperature = 35 °C. The effects of salts present (chlorides and sulfates) in solution of dye was studied. The effects of the nature of the catalyst such as (α 2P2W18O62)6−; (α 2P2W17O61)10−; (α 2P2W17CoO61)8−; and (α 2P2W15Mo2FeO61)7− on the dye oxidation at room temperature were evaluated.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 25, 2013

References

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