Decomposition of low-concentration gas-phase toluene using plasma-driven photocatalyst reactor

Plasma-driven photocatalysis system was prepared and performed. To overcome the treatment difficulty of volatile organic compounds, non-thermal plasma was used as a light source of photocatalysis. The removal of low-concentration toluene was investigated and secondary products were analyzed by gas chromatograph–mass spectroscopy. The plasma-driven photocatalyst reactor using direct current as a light source and titanium dioxide catalyst loaded on activated carbon fiber (TiO₂/ACF) as photocatalyst was studied. It was found that plasma-driven photocatalysis system could significantly increase the removal effect of toluene. The number of secondary products was largely decreased. It means that plasma-driven photocatalysis hybrid system was an effective method for the removal of volatile organic compounds.