Oxidative removal of methyl red dye by Fe supported pumice in the presence of H2O2

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Oxidative removal of methyl red dye by Fe supported pumice in the presence of H2O2

Oxidative removal of methyl red dye by Fe supported pumice in the presence of H2O2

D.I. Çifçi1,*, S. Meriç1

HIGHLIGHTS

  • Adsorption and oxidation of MR is increased by Fe-pumice (Fe-P) composite.
  • Fe-P composite is a cost-effective adsorbent for dye removal.
  • MR removal data obeyed Pseudo first order kinetics.
  • Pumice abates pollution and color threats aquatic-life.
  • pH is the most important parameter to influence the efficiency.

ABSTRACT

The main objective of this study is to evaluate the removal of Methyl Red (MR) dye from aqueous solution using Fe supported Pumice (Fe-P) and H2O2. The effects of Fe-P and H2O2 concentration, as well as, solution of pH on MR removal were investigated. The results showed that all parameters have significant effect on MR dye removal. The MR removal efficiency increased with increasing Fe-P dose and the oxidation time decreased to 0.5 h at 5 g/L Fe-P dose. Similarly, MR removal increased when H2O2 concentration was increased from 25 to 50 mg/L. pH was observed to be the most important parameter to influence the efficiency. The Fe-P showed a high removal potential of MR dye at the optimum pH defined to be 3. Both adsorption and oxidation with hydrogen peroxide of MR removal was enhanced by Fe support of pumice. The results of this study emphasize that Fe-P composite can be used as a cost-effective adsorbent for dye removal. About 95% of MR removal was obtained using Fe-P composite by adding H2O2 after 1 h oxidation.

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To cite this article: Cifci DI, Meric S. Oxidative removal of methyl red dye by Fe supported pumice in the presence of H2O2. Journal of Desalination and Water Purification 2015;1(1):6-11.

To link this article: http://ababilpub.com/download/jdwp1-1-3/