Study of DBD Argon Plasma Jet on Electrical Characteristics, Spectroscopic Emissions due to the Influence of Gas Flow Rate

Abstract

Research on the analysis of DBD argon plasma jet as a producer of dissolved reactive oxygen spicies (ROS) in distilled water as plasma actived medium (PAM) has been carried out. Characterization of the Ar plasma jet was carried out regarding its electrical properties, emission spectrum for three different flow rates (2 L/min, 6 L/min, and 10 L/min). The Ar plasma jet that comes out of the reactor is directed towards the distilled water at varying distances (5 cm and 10 cm). It was found that the maximum concentration of dissolved reactive oxygen compounds in distilled water was obtained at a distance of 10 cm from the jet tip to distilled water and a treatment time of 40 seconds. The I-V categorization obtained a curve following a quadratic polynomial. The emission spectrum of Ar jet plasma yields almost all wavelengths for Ar plasma. The emission intensity is directly proportional to the flow rate.