Reliability analysis of NaN3 as quencher of 1O2 in heterogeneous persulfate catalytic oxidation system

Abstract

At present, more and more scholars have questioned the reliability of NaN3 as a quench agent of 1O2 in heterogeneous persulfate catalytic oxidation system. In this study, we first compared the decomposition kinetics of PMS in the presence of CuO (CuOMgO), different concentrations of NaN3, and CuO (CuOMgO) with different concentrations of NaN3, respectively. Subsequently, the catalytic performance of common catalysts was compared. These results confirmed that the addition of NaN3 will significantly affect the decomposition process of PMS in heterogeneous persulfate catalytic oxidation system, so it is not suitable to be used as quench agent of 1O2.

Keywords

• NaN3
• 1O2
• Catalyst activation
• Persulfate
• Heterogeneous