摘要：In the experiment, nano-titania film was prepared by sol-gel method. The raw materials and experimentalconditions were optimized for preparing TiO 2 thin film. We draw the conclusion as follows: n[Eth]:n[Ti(OBu) 4 ]= 18(Mole ratio), n[AcAc]:n[Ti(OBu) 4 ] = 1.2(Mole ratio), n[H 2 O]:n[Ti(OBu) 4 ] = 2.5 (Mole ratio), pH = 3~5,hydrolysable temperature = 25~35°C, and heat treatment temperature = 450°C. Then the photocatalystswere packed into nonthermal plasma reactor, and a synergistic control experiment for benzene decompositionwas carried out, that is, nano-titania photocatalyst with nonthermal plasma. The results show that benzeneremoval efficiency has an order of “with anatase photocatalyst in the plasma reactor > the mixture photocatalystof anatase and rutileat > rutileat photocatalyst”, and the effect of degradation was visible by added photocatalystin the plasma reactor. When concentration of benzene was 1500 mg/m 3 and voltage was 30 kV, the removalefficiency was increased 19% higher with photocatalyst than without photocatalyst. Obviously, the synergisticeffect of nano-TiO 2 catalyst and non-thermal plasma is very effective for benzene decomposition.
