Plasma effect on the NO, CO, and SO2 gases pollutant removal using AC/MgO/Fe2O3/TiO2/ ZnO /Zeolite nanocomposite

Abstract

This study investigated a gas adsorbent film based on the AC/MgO/Fe2O3/TiO2/ZnO/Zeolite nanocomposite for NO, CO, and SO2 gas removal. The gas adsorption in the absorbent film in the presence and absence of plasma and at room temperature have been compared. The results indicated a rapid reduction in CO concentration, decreasing from 1500 ppm to 200 ppm (in the absence of plasma) and 1500 ppm–50 ppm (in the presence of plasma) within just 1 minute. The plasma notably enhanced removal efficiencies of pollutant gases and showed the efficiency of 92 %, 95 %, and 97 % for SO2, NO, and CO gas, respectively. Furthermore, the finding reveals that the presence of plasma in the environment enhances the effectiveness of the nanocomposite for all three gases, resulting in an approximate 12 % increase in efficiency. The analysis of the adsorption capacities of the AC/MgO/Fe2O3/TiO2/ZnO/Zeolite revealed that SO2 exhibited the lowest adsorption capacity, whereas CO demonstrated the highest adsorption capacity. The findings of this research offer valuable insights into nanocomposite adsorbent layers and the impact of plasma environments on the efficiency of absorbent films for future researchers.

Keywords

• Plasma
• Pollutant
• Adsorption
• Nanocomposite
• Gas removal