title: Oxidation of bisphenol F (BPF) by manganese dioxide.
abstract: 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.
authors: Department of Environmental Sciences, University of California, Riverside, CA 92521, USA.
authors: Zhijiang
authors: Z
authors: Lu
authors: Kunde
authors: K
authors: Lin
authors: Jay
authors: J
authors: Gan
mesh_terms: D001559:Benzhydryl Compounds / Q000737:chemistry*; D052244:Endocrine Disruptors / Q000737:chemistry; D004785:Environmental Pollutants / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000379:methods; D004967:Estrogens / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D017895:Manganese Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D000098833:Bisphenol F Compounds
chemical_list: D001559:Benzhydryl Compounds; D052244:Endocrine Disruptors; D004785:Environmental Pollutants; D004967:Estrogens; D017895:Manganese Compounds; D010087:Oxides; C008745:4,4'-bisphenol F; D000098833:Bisphenol F Compounds; C016552:manganese dioxide