Influence of Activated Carbon as an Adsorbent Used in TiO TiO2Photocatalyst on Photocatalytic Degradation Behaviors ofFreon-22, Benzene and Butyraldehyde

摘要

The photocatalytic degradations of Freon-22, benzene and butyraldehyde in thegas phase were investigated using TiO2/AC composite photocatalysts. It was foundthat the photocatalytic efficiency was influenced by the content of activated carbon inthe composite photocatalysts. The composite catalysts combined the adsorptiveproperties of activated carbon and the photocatalytic properties of titanium dioxide. Asynergy effect between activated carbon with titanium dioxide was put into operation.The adoptive properties of activated carbon enhanced the photocatalytic efficiency,and photocatalysis regenerated the adsorption capacity of activated carbon on-site.