Direct electron transfer process-based peroxymonosulfate activation via surface labile oxygen over mullite oxide YMn2O5 for effective removal of bisphenol A

Activation of O2 over three-dimensional manganese oxide nanoprisms under ambient conditions towards oxidative removal of aqueous organics

“…The reaction conditions, other additive, degradation efficiency and time are listed in Table 1. 84–90 When air was used as the oxidant, Ce–Bi-OMS-2-8 wt% demonstrated the highest degradation efficiency. Other reported examples indicate that only PMS or PDS was used as the oxidant; good degradation results were obtained.…”

Efficient degradation of organic dyes using peroxymonosulfate activated by magnetic graphene oxide

“…The declined removal under the strong alkaline condition was attributed to the decomposition of PMS without generating ROS triggered by excessive OH − (eqn (5)–(7)). 47,48 HSO 5 − + H 2 O → H 2 O 2 + HSO 4 − H 2 O 2 → 2˙OHHSO 5 − + H 2 O → SO 5 2− + H 3 O + HSO 5 − + SO 5 2− → HSO 6 − + SO 4 2− HSO 6 − + OH − → H 2 O + SO 4 2− + O 2 …”

“…The declined removal under the strong alkaline condition was attributed to the decomposition of PMS without generating ROS triggered by excessive OH À (eqn ( 5)-( 7)). 47,48 HSO 5…”

Treatment of Coking Wastewater by α-MnO2/Peroxymonosulfate Process via Direct Electron Transfer Mechanism

“…The performance was nearly consistent in the five-cycle application because 73.8%, 73.4%, 73.6%, 72.9% and 72.7% of COD was removed in the first, second, third, fourth and fifth run of the α-MnO 2 /PMS process. The good reuse performance was widely reported in AOPs dominated by direct electron transfer mechanism due to the fact that little change in the structure of the heterogeneous catalysts occurred during the activation [65,66]. We further studied the effects of reaction conditions including the dosage of catalyst (X 1 ), the dosage of PMS (X 2 ) and initial pH (X 3 ) on COD removal (Y) by the results of seventeen sets of single-factor experiments (Table S1).…”