Plasma-assisted oxidation of toluene over Fe/zeolite catalyst in DBD reactor using adsorption/desorption system

Fe/ZSM-5 and Fe/Beta catalysts were applied to the oxidation of toluene in the DBD plasma-catalyst hybrid system using two-step adsorption/desorption process. Desorption and oxidation activity of the adsorbed toluene was affected significantly by both catalyst properties and process variables. Pore volume, Fe content, and Si/Al ratio of the catalyst influenced the formation of products by changing the interaction between the catalyst and the plasma species. The desorption process time was also controlled by varying the concentration of O3 and the air flow rate. Consequently, these results could contribute to advance the plasma-catalyst system with an optimal VOCs oxidation efficiency.