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Updated: May 31, 2026

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
Oxidation of bisphenol F (BPF) by manganese dioxide
Zhijiang Lu1, Kunde Lin, Jay Gan
1Department of Environmental Sciences, University of California, Riverside, CA 92521, USA.
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.
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