Contaminant-assisted oxidation pathway enabling enhanced antibiotic degradation. (IMAGE)
Caption
Schematic comparison between conventional oxidation and contaminant-assisted synergistic oxidation. In the baseline Mn(VII)/chlorite system, short-lived manganese intermediates lead to limited pollutant removal. In contrast, phenolic compounds undergo proton-coupled electron transfer to generate long-lived phenoxyl radicals, which act as persistent reactive mediators and accelerate sulfamethoxazole (SMX) degradation by 3.5–20 times. This mechanism transforms phenolic pollutants from inhibitory matrix components into active promoters of water purification.
Credit
Environmental Science and Ecotechnology
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