Metal-organic frameworks-derived perovskite catalysts for efficient degradation of 2, 4-dichlorophenol via peroxymonosulfate activation

Superstructures with Atomic-Level Arranged Perovskite and Oxide Layers for Advanced Oxidation with an Enhanced Non-Free Radical Pathway

“…•− ) (eq 2), which, however, would not contribute to high contaminant decomposition efficiency because of its low redox potential. 59 The consumption of lattice oxygen for the generation of 1 O 2 would inevitably lead to the formation of oxygen vacancies as intermediates, which, together with the oxygen vacancies inherent in the perovskite structure, would promote the generation of free radicals (SO 4…”

The synergistic effect of PMS activation by LaCoO3/g-C3N4 for degradation of tetracycline hydrochloride: performance, mechanism and phytotoxicity evaluation

“…The low activation energy demonstrated that the LaCoO 3 /g-C 3 N 4 catalyst was promising for the heterogeneous catalytic reaction. 66…”

“…Heterogeneous transition metal catalysts have the advantages of recyclability and high activity, which have attracted extensive attention from researchers. Up to now, different types of transition metal based catalysts (supported catalysts, 13 oxides, 14 sulfides, 15 LDHs, 16 spinels, 17 perovskites, 18 and MOFs 19 ) have been reported for PMS activation. However, for LDH or oxide catalysts, transition metal ions are still easy to leach, resulting in secondary contamination.…”

“…Meanwhile, the conversion between La 3+ and La 4+ can also activate PMS into SO 4 À and SO 5À by eqn (17) and (18) 79. Finally, different active radicals (SO 4À, OH and 1 O 2 ) attacked the chemical bonds of TC to form small molecules or other intermediates, which were further mineralized into carbon dioxide and water through eqn(19).…”

Application of CoMn/CoFe layered double hydroxide based on metal–organic frameworks template to activate peroxymonosulfate for 2,4-dichlorophenol degradation

“…Transition metal catalysts are generally used for PMS activation and other catalytic reaction in the form of oxide (Wang et al 2022), sulfide (Li et al 2021), hydroxides (Yang et al 2021a), supported catalyst (Ahsan et al 2020a), perovskite (Geng et al 2020) and so on. As a typical anion layer material, Layered double hydroxides (LDHs) are often referred to as hydrotalcite-like compounds, consisting of a body laminate with metal hydroxide and an interlayer region containing compensating anions and solvated molecules (Daud et al 2016).…”