Effect of pH and inorganic salts on the photocatalytic decolorization of methyl orange in the presence of TiO2 P25 and PC500

摘要

The photocatalytic decolorization of aqueous solution of methyl orange has been investigated using TiO2 Degussa P25 and Millennium PC500 in the presence of UV medium pressure mercury lamp (UV-A light at lambda(max)=365nm). The effect of pH, electron acceptor such as H2O2, and inorganic anions (Cl-,