Abstract
The degradation reaction kinetics and chemical mechanism of phenol decomposition by ozonation, TiO2-photocatalysis and vacuum ultraviolet (VUV) photolysis were investigated. The concentration dependences of the aromatic and aliphatic intermediates and the TOC content were compared as a function of the phenol conversion. The concentration profiles and the TOC curves obtained with each method were very similar. The results suggest a similar chemical mechanism for the transformation of phenol irrespective of the starting active component (a positive hole on the surface of the catalysts, a VUV photon, ozone or the hydroxyl radical).
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