Monopersulfate oxidation of tetrabromobisphenol A by an iron(III)-phthalocyaninetetrasulfate catalyst coordinated to imidazole functionalized silica particles

Heterogeneous degradation of refractory pollutants by peroxymonosulfate activated by CoOx-doped ordered mesoporous carbon

“…According to the previous reports, DMPOX was usually generated through a secondary oxidation-reduction process in the interaction between strong oxide substances and DMPO [58]. In the current system, DMPOX might originate from the decomposition of DMPO-SO 4 (with low sensitivity and short life-time) [59] or DMPO-OH adducts [60] (Fig. S11).…”

Peroxymonosulfate enhanced visible light photocatalytic degradation bisphenol A by single-atom dispersed Ag mesoporous g-C3N4 hybrid

“…As we know, the DMPO-SO 4 adduct is difficult to detect because of its low sensitivity and short life-time [42]. Thus, the BMPOX peak can be originated from the BMPO-SO 4 adduct, as shown in Scheme 1 [43]. Based on the above results, a plausible mechanism for the degradation of BPA in Ag/mpg-C 3 N 4 /PMS/vis system is proposed and shown in Scheme 2.…”

Interesting Green Catalysis of Cyclohexane Oxidation over Metal Tetrakis(4-carboxyphenyl)porphyrins Promoted by Zinc Sulfide

“…However, few studies have focused on additional exploration to increase catalytic activity of metalloporphyrins via the thiolate ligand for aerobic oxidation of hydrocarbons in heterogeneous systems, or even in homogeneous systems, in practice. , To prevent the undesired reaction in which the thiolate ligand is oxidized to disulfide by molecular oxygen, bulky protecting groups were added around the thiolate axial ligand . First, based on the previously discussed guidelines and studies where an oxygen or a nitrogen atom with a lone electron pair was included in the supporting medium, such as Al 2 O 3, AlOOH, , MCM-41, , ZnO, − silica modified with imidazole groups (CPTMS), and the porous porphyrinic framework materials for axial ligation to the metalloporphyrins, based on enhanced catalytic performance of the Fe- and Mn-porphyrins in which the imidazole and pyridine groups served as the axial ligands. − Second, many new techniques for catalytic cyclohexane oxidation are available that offer high yields of the corresponding main products, − but applications of solvents and nonoxygen­(O 2 ) oxidizing agents, − photochemical techniques, , and the relatively long oxidation time have been disappointing, − which will eventually increase energy consumption and pollution. The biomimetic catalysis system proposed by Lyons is environmentally friendly because it is a green catalysis system that only requires the catalyst, reaction substrate, and oxygen but does not require coreductants, stoichiometric oxidants or photochemical techniques, even any solvents .…”