Evidence against hydroxyl radical mechanism in photo-Fenton degradation of p-chlorophenol

Article type: Research Article

Authors: CHEN, Lin^; | ZHOU, Ming-hua | LEI, Le-cheng

Affiliations: Institute of Environmental Engineering, Zhejiang University, Hangzhou 310027, China | Institute of Environmental Engineering and Science, Hangzhou Dianzi University, Hangzhou 310018, China

Note: [] Corresponding author. E-mail: [email protected]

Abstract: This paper provides evidence for the degradation of organic pollutant by the photo-Fenton complex mechanism. Both the complex oxidation and HO· oxidation mechanisms were verified by p-chlorophenol degradation, UV/Vis spectra anaylsis, and quantum yield. The hydroxyl radical involved in the photo-Fenton process can also be generated from the decomposition of H_2O_2, photolysis of Fe^{3+} and degradation of hydrated Fe(VI)-complex, excepting the traditional Fenton reaction.

Keywords: photo-Fenton, p-chlorophenol, mechanism

Journal: Journal of Environmental Sciences, vol. 18, no. 2, pp. 388-391, 2006