Kinetic Modeling of the Electro-Fenton Process: Quantification of Reactive Oxygen Species Generation
文献类型: 外文期刊
第一作者: Qiu, Shan
作者: Qiu, Shan;He, Di;Waite, T. David;Ma, Jinxing;Liu, Tongxu
作者机构:
关键词: Electro-Fenton;Reactive oxygen species;Hydrogen peroxide;Contaminant degradation;Kinetics
期刊名称:ELECTROCHIMICA ACTA ( 影响因子:6.901; 五年影响因子:6.016 )
ISSN:
年卷期:
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收录情况: SCI
摘要: In this study, Electro-Fenton (E-Fenton) reactions at pH 3.0 were initiated by cathodic generation of H2O2, with subsequent production of (OH)-O-center dot following the addition of Fe(II) or Fe(III) ions into the system. The variation in concentrations of H2O2, Fe(II), total Fe and (OH)-O-center dot following addition of Fe ions into the E-Fenton system was investigated over a range of conditions. A kinetic model incorporating the key processes operating in the E-Fenton system was developed with particular attention given to (i) cathodic generation of H2O2 and anodic formation of (OH)-O-center dot, (ii) production of (OH)-O-center dot via homogeneous Fenton reactions, and (ii) surface reactions including electro-sorption of Fe ions and cathodic reduction of Fe(III) to Fe(II) species resulting in the enhancement of production of (OH)-O-center dot via surface-located Fenton reactions. (C) 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license.
分类号: TQ15`O64
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