Investigation of the half-life of ozone generated by dielectric barrier discharge using response surface modeling

Abstract

This study investigates the gas-phase ozone decomposition kinetics, crucial for optimizing ozone concentration in various industrial applications, particularly oxidation processes. Experimental investigations were conducted within a sealed stainless-steel chamber, varying airflow (0–300 m³/h), temperature (20–40 °C), and relative humidity (40–80%). A combination of one-factor-at-a-time experiments and response surface modeling was employed to analyze the interplay of these factors on ozone decomposition. Results indicate that ozone decomposition is slower at zero airflow, 20 °C, and 40% humidity. Ozone was generated using a dielectric barrier discharge (DBD) reactor. This research highlights the importance of these variables in ozone-based applications and identifies optimal conditions for enhanced ozone utilization. By comprehending these factors, industries can improve efficiency in various oxidation processes relying on ozone. This can lead to more effective utilization of ozone as a valuable resource across numerous industrial applications. In addition, these findings may prove beneficial for optimizing ozone use in air treatment processes.