Degradation of Methylene Blue by [Ru^III(hedtra)(H₂O)]/H₂O₂ Catalytic System

Title:Degradation of Methylene Blue by [Ru^III(hedtra)(H₂O)]/H₂O₂ Catalytic System

Volume: 3 Issue: 1

Author(s): Debabrata Chatterjee and Anna Katafias

Affiliation:

Keywords: Dye degradation, hydrogen peroxide, kinetics and mechanism, methylene blue, ruthenium complex.

Abstract: The [Ru^III(hedtra)(H₂O)] (hedtra^3- = N-hydroxyethylethylenediaminetriacetate) mediated oxidative degradation of methylene blue (MB) in the presence of H₂O₂ has been achieved under ambient conditions. Based on the results of spectral studies a catalytic pathway involving activation of the dye, MB through its coordination to the ruthenium centre of Ru(hedtra) complex has been suggested. The catalytic-active intermediate [Ru^III(hedtra)(OOH)]- was also found to be operative at high H₂O₂ concentration in effecting MB degradation under the specified conditions. Results of the catalytic studies have been discussed with reference to the data reported for the corresponding Ru(edta) (edta^4- = ethylenediamineteraacetate) complex.

Cite this article as:

Chatterjee Debabrata and Katafias Anna, Degradation of Methylene Blue by [Ru^III(hedtra)(H₂O)]/H₂O₂ Catalytic System, Current Catalysis 2014; 3 (1) . https://dx.doi.org/10.2174/15748936113086660019