Decomposition of benzene in dry air by super-imposed barrier discharge nonthermal plasma-photocatalytic system

A hybrid system comprising a nonthermal plasma (NTP) reactor packed with two kinds of material (A & B) and nano-titania catalyst was used for benzene decomposition. Firstly, the paper compares the effects of packed materials A & B on benzene decomposition in the plasma reactor. The results showed that simple B material, and especially B coated with nano-titania catalyst (hybrid system), had better removal efficiencies of benzene than A. Additionally, the latter saved power consumption and controlled the reaction products effectively. The selectivity of carbon dioxide or carbon monoxide in the hybrid system was higher than the simple NTP system. At last, the reaction mechanism of NTP with photo-catalyst was discussed.