Application of TiO2 Photocatalysts to NO and SO2 Removal in the Dielectric Barrier Discharge Process

초록

The dielectric barrier discharge Process combined with a TiO2 photocatalyst was applied to remove NO and SO2. The dielectric barrier discharge reactor was packed with glass beads as a dielectric material and the glass beads were coated with TiO2 particles by dip-coating into solutions of TiO2 particles prepared by using sol-gel method and of Degussa P-25 TiO2 particles. The TiO2 thin film dip-coated I time into the solution of TiO2 prepared by using the sot-gel method was the most uniform and efficient for NO and SO2 removal when using a dielectric barrier discharge photocatalyst hybrid system. The increase in the applied peak voltage enhanced the NO and SO2 removal efficiencies. The NO and SO2 removal efficiencies decreased as the initial NO and SO2 concentrations were increased.

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