Abstract
This study was designed to evaluate the effectiveness of adsorbed toluene removal using a coaxial cylindrical dielectric barrier discharge (DBD) reactor packed with a hybrid material catalyst [M/13X-γ-Al2O3 (M: Ag, Ce, Mn, and Co)]. All experiments were conducted at atmosphere pressure and room temperature. Results showed that Ag/13X-γ-Al2O3 (Ag/13X-Al) exhibited the highest breakthrough capacity (˜2.14 mmol) and the highest mineralization rate (MR) for toluene decomposition (˜68%) at 20 kV. The kinetic model on adsorbed toluene mineralization showed a good fit with the pseudo-second-order kinetic model for all catalysts. The model determined by discharge power (P) and initial amount of adsorbed toluene (n0) is expressed as: 0.0009n0-2.402⋅P⋅t=1/n-1/n0, where t and n denote the reaction time and the amount of adsorbed toluene, respectively. Finally, the model reliability was verified by comparing the experimental values of MR with the calculated values.
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