Jul 1, 2020 · Electrochemically activated PMS significantly enhanced organic pollutants degradation. Compared with PDS, electrochemically activated PMS was easier to generate SO 4 −. Electrochemically activated PMS exhibited strong …

Feb 16, 2020 · PMS and PDS can oxidize alcohols, ketones, phenols, amines, and sulfides without involving radicals. (38,87,172,173)Elbs oxidation and Boyland–Sims oxidation, causing the hydroxylation of phenols and aryl amines, respectively, are primary mechanisms, though specific to PDS in most cases.

Apr 15, 2023 · In this review, the application of SAC-activated peroxymonosulfate (PMS) or peroxydisulfate (PDS) degradation of organic pollutants is summarized, including new synthesis methods and characterization techniques for SACs, as well as two mechanisms of activated PMS/PDS radical and nonradical degradation of organic compounds, and the future ...

Apr 15, 2021 · PDS and PMS have relatively high oxidation potential E 0 (HSO 5 − /HSO 4 −) = 1.82 V; E 0 (S 2 O 8 2− /SO 4 2−) = 2.01 V) (Lee et al., 2020), and have potential to directly oxidize organic pollutants with electron-rich moieties without any catalysts (Bard et al., 1985; Steele and Appelman, 1982).

Apr 17, 2020 · Peroxymonosulfate (PMS) and peroxydisulfate (PDS) possess discrepant atomic structures and redox potentials, while the nature of their distinct behaviors in carbocatalytic activation has not been investigated. Herein, we illustrated that the roles of nitrogen species in CNT-based persulfate systems are intrinsically different.

The objective of this Review is to provide an update on PMS/PDS activation using MOFs as catalysts for organic pollutant degradation. The various types of MOFs based on structure and composition were evaluated for their PS/PMS activation capacities.

Mar 24, 2021 · As an alternative, activating PDS/PMS is a feasible and green chemical process for 1 O 2 production. Current studies suggest that catalyst is influential to regulate the oxidizing species formed during PDS/PMS-based AOPs.

Generally, PMS/PDS activation using Fe involves the transformation from Fe 2+ to Fe 3+ and the generation of ˙OH and SO 4 ˙ −. Notably, the concentration of Fe 2+ has a crucial impact on PMS/PDS oxidation of organic pollutants.

Jan 15, 2024 · Modified hydrochar (NHC@Fe), with multiple functional groups and transition metal oxide-containing surface, was successfully synthesized by one-step hydrothermal method. The differences in its catalytic activity for peroxymonosulfate (PMS) and peroxydisulfate (PDS) activation were studied in detail.

Jun 10, 2023 · Peroxodisulfate (PDS)- and peroxymonosulfate (PMS)-based advanced oxidation processes (AOPs) have attracted great interest due to the production of highly reactive radicals (SO 4•− and HO •) and their effectiveness in degrading various pollutants [1, 2].