二氧化锰氧化双酚 F（BPF）。
Oxidation of bisphenol F (BPF) by manganese dioxide.
机构信息
Department of Environmental Sciences, University of California, Riverside, CA 92521, USA.
出版信息
Environ Pollut. 2011 Oct;159(10):2546-51. doi: 10.1016/j.envpol.2011.06.016. Epub 2011 Jul 7.
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.
双酚 F（BPF）是一种环境雌激素，被用作塑料工业中的单体，其环境归宿和去除越来越受到关注。本研究聚焦于 MnO2 氧化 BPF 的动力学、影响因素和途径。在 pH 5.5 时，在含有 100 μM MnO2 和 4.4 μM BPF 的溶液中，BPF 在 20 分钟内被氧化了约 90%。该反应对 pH 敏感，遵循 pH 4.5 > pH 5.5 > pH 8.6 > pH 7.5 > pH 6.5 > pH 9.6 的顺序。在低 pH（≤ pH 5.5）和高 pH（≥ pH 8.6）时，高浓度的腐殖酸会抑制反应。此外，金属离子和阴离子也会抑制反应，抑制顺序为 Mn2+ > Ca2+ > Mg2+ > Na+ 和 HPO42- > Cl- > NO3- ≈ SO42-。共鉴定出 5 种产物，从中提出了一个初步的途径。
Zotero 插件