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- W4205661731 abstract "Cobalt sulfides as persulfate activator have received increasing interest in the field of persulfate-based advanced oxidation process. In this study, Co9S8 anchored in N, S, O heteroatoms co-doped carbon ([email protected]) composite was prepared with different sulfur precursors (sulfur, thiourea, thiophene and benzyl disulfide), and used to activate peroxymonosulfate (PMS) for sulfamethoxazole (SMX) degradation. The effect of temperature, pH, inorganic ions, humic acids and water components on SMX degradation was investigated. The results showed that sulfur precursor could regulate the catalytic activity of the composite through changing the cobalt speciation and carbon structure. The catalytic activity was highest when the molar ratio of sulfur to cobalt was 5:1 (CoSx@N-S-O-C-5). Sulfate radicals (dominant) and hydroxyl radicals contributed to SMX degradation. The intermediate products during SMX degradation were identified, and the possible pathway of SMX degradation was proposed. Pyridinic N, Co-N, cobalt, S2−, S22−, C-S-C and C-SOx were active sites for PMS activation." @default.
- W4205661731 created "2022-01-25" @default.
- W4205661731 creator A5032904655 @default.
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- W4205661731 date "2022-04-01" @default.
- W4205661731 modified "2023-10-14" @default.
- W4205661731 title "High efficient activation of peroxymonosulfate by Co9S8 anchored in N, S, O co-doped carbon composite for degradation of sulfamethoxazole: Effect of sulfur precursor and sulfur doping content" @default.
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- W4205661731 doi "https://doi.org/10.1016/j.cej.2022.134824" @default.
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