Oxidation of bisphenol F (BPF) by manganese dioxide - ScienceDirect
摘要：
Bisphenol F (BPF), an environmental estrogen, is used as a monomer in plastic industry and its environmental fate and decontamination are emerging concern. This study focused on the kinetics, influencing factors and pathways of its oxidation by MnO 2 . At pH 5.5, about 90% of BPF was oxidized in 20 min in a solution containing 100 μM MnO 2 and 4.4 μM BPF. The reaction was pH-dependent, following an order of pH 4.5 > pH 5.5 > pH 8.6 > pH 7.5 > pH 6.5 > pH 9.6. Humic acids inhibited the reaction at low (≤pH 5.5) and high pH (≥pH 8.6) at high concentrations. In addition, metal ions and anions also suppressed the reaction, following the order Mn 2+ > Ca 2+ > Mg 2+ > Na + and HPO 4 2 > Cl > NO 3 ≈ SO 4 2 , respectively. A total of 5 products were identified, from which a tentative pathway was proposed.
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