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Bulletin of the Chemical Society of Ethiopia

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Kinetic and thermodynamic study of oxidative degradation of acid yellow 17 dye by Fenton-like process: Effect of HCO3−, CO32−, Cl− and SO42− on dye degradation

J. Khan, M. Tariq, M. Muhammad, M. H. Mehmood, I. Ullah, A. Raziq, F. Akbar, M. Saqib, A. Rahim, A. Niaz

Abstract


We report here the degradation of AY-17 dye using Fenton-like process (H2O2/Fe3+). The maximum degradation (83%) of AY17 dye is achieved at pH 3 in 60 min, with optimum concentrations of AY 17 (0.06 mM), H2O2 (0.9 mM), and Fe2+ (0.06 mM). The scavenging effects of HCO3, CO32−, Cl and SO42− on dye degradation are also examined. The activation energy (Ea), activation enthalpy (rH*), and activation entropy (rS*) are calculated for the dye degradation using pseudo-first-order kinetics at various temperature.

               

KEY WORDS: Acid Yellow 17, H2O2/Fe3+, Fenton-like process, Oxidative degradation, Scavenging effects

 

Bull. Chem. Soc. Ethiop. 2019, 33(2), 243-254.

DOI: https://dx.doi.org/10.4314/bcse.v33i2.5




http://dx.doi.org/10.4314/bcse.v33i2.5
AJOL African Journals Online