Heterogeneous catalytic oxidation degradation of BPAF by peroxymonosulfate active with manganic manganous oxide: Mineralization, mechanism and degradation pathways

In this study, the catalytic ability and mechanisms involved in activating peroxymonosulfate (PMS) with Mn3O4 degradation pathways of bisphenol-AF (BPAF) removal was investigated. SO4−• ·OH which were explored by scavenging tests major reactive radicals Mn3O4/PMS system. A simple simulation algorithm also used to calculate relative concentrations ([SO4−•]) ([·OH]) 8.39 × 10 −15 M 6.96 −13 M, respectively. The mechanism for electron transfer between Mn (II) (III) species discussed. Three BPAF determined GC/MS LC/MS technology, including chemical oxidation, hydroxylation, transfer, polymerization, ring-cleavage. addition, results suggested that system had an efficient total organic carbon (TOC) rate excellent environmental adaptability, TOC being as high 73.2% control condition. Furthermore, reuse experiments comparison on structural componential changes powder before after reaction demonstrated catalyst possessed stability reusability. Finally, a maximum approximately 90.0% achieved optimal conditions 500 mg/L dosage, 4 mM PMS concentration, 7.0 ± 0.2 initial pH, 5 concentration And effect coexisting anions natural water quality considered. This study can be considered green approach reluctant pollutants.