Understanding of the synergy effect of DBD plasma discharge combined to photocatalysis in the case of Ethylbenzene removal: Interaction between plasma reactive species and catalyst
Résumé
Hybrid non-thermal plasma combined with photocatalysis is an efficient technology for the degradation of volatile organic compounds (VOCs) and leads to a synergetic boosting effect process. Herein, ethylbenzene (EB) in hybrid lab-scale reactor was performed. In mode (plasma DBD [TiO2 + UVA]), EB synergetically boosted, higher efficiency reached. this study, behaviour investigated whilst varying several operational conditions, including UV light source (UVA UVC), TiO2 weight (7.5–22.51 g·m-²), addition metallic dopants at different ratios (x%Cu-TiO2 x%MnO2-TiO2, where x = 1, 3, 5 10 Cu:TiO2 MnO2:TiO2) catalyst support (glass fiber tissue [GFT] nickel foam [NF] thicknesses [0.3–3.3 mm]). Moreover, oxygen content (0%–100%) atmosphere examined. The results showed enhancement under UVC (TiO2 DBD), which may be consequence intensive ozone decomposition generation reactive atomic oxygen. improvement 1% Cu-TiO2 10% MnO2-TiO2 catalysts assumed reflect role species production on surface via depletion mechanism. Furthermore, TiO2/NF (3.3 mm) highest effect, likely due conductive character 3D porous structure NF. Finally, rich composition had apparent impact effect.