Abstract
Degradation of cyanuric acid in aqueous suspensions of Degussa P25 TiO 2 has been achieved by the addition of fluoride ion at low pH. Consistent with the work of Minero and Pelizzetti [Langmuir 16 (2000) 2632, Langmuir 16 (2000) 8964], it is suggested that this is due to the formation of homogeneous phase hydroxyl radicals. Support for this hypothesis is brought from successful degradations using other hydroxyl-generating conditions and the successful degradation of 4- t-butylpyridine, another organic compound previously shown to be resistant to TiO 2-mediated photocatalytic degradation.
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