Gas -solid heterogeneous photocatalytic oxidation of trichloroethylene by near ultraviolet illuminated titanium dioxide

omplete oxidation of parts-per-million levels of gaseous trichloroethylene (TCE) to carbon dioxide and hydrogen chloride has been achieved at ambient conditions over near ultraviolet illuminated titanium dioxide powders. Kinetic experiments have determined that the reaction rate dependence on outlet TCE, oxygen and water vapor mole fractions mole fractions consists of reactant sensitive and insensitive regions. Correlation of an empirical power law model with kinetic results in the reactant sensitive regions yielded limiting apparent reaction rate orders for TCE, oxygen and water vapor of 0.8, 1.7 and...