Photochemical oxidation of chlorinated phenols in comparison with electro-oxidation

Abstract

Photooxidation of chlorophenols was studied and the results were analyzed. It has been found that 4-chlorophenol is oxidized faster than other chlorinated phenols, indicating that higher chlorinated phenols are hard to decompose and the order of the decomposition was as follows: 4-CP > 2,4-DCP > 2,4,6-TCP > PCP.

Keywords:

• Chlorophenols
• ^• OH radical
• photooxidation
• redox potentials

Acknowledgements

The authors acknowledge the Dirección General de Asuntos del Personal Académico (Project No. IN208102-3 and EN208604) and the Consejo Nacional de Ciencia y Tecnologia (Project No. 32759-N) for their support. We also thank Unidad de Servicios de Apoyo e Investigación USAI, UNAM for providing spectrometric facilities.