Abstract
Photocatalytic oxidation of aromatic aldehydes to related carboxylic acids was investigated with molecular oxygen in the presence of Preyssler anion, with formula [NaP5W30O110]14 −. It was observed that H14[NaP5W30O110] could catalyze the oxidation of aromatic aldehydes by molecular oxygen under homogeneous conditions as well as supported on silica in heterogeneous conditions. Also, for further studies, we have investigated the application of Preyssler catalyst in the presence of hydrogen peroxide as oxidizing agent. Our findings showed that this catalyst is very active in the presence of hydrogen peroxide and UV light. The effects of catalyst concentration, time and loading percentage have been studied.
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