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题名: Interfacial mechanisms of heterogeneous Fenton reactions catalyzed by iron-based materials: A review
作者: He, Jie; Yang, Xiaofang; Men, Bin; Wang, Dongsheng
刊名: JOURNAL OF ENVIRONMENTAL SCIENCES
出版日期: 2016-01
卷号: 39, 期号:0, 页码:97-109
关键词: Heterogeneous Fenton reactions ; ROS ; interfacial mechanisms ; iron-based materials
DOI: 10.1016/j.jes.2015.12.003
部门归属: 环境水质学国家重点实验室
英文摘要: The heterogeneous Fenton reaction can generate highly reactive hydroxyl radicals (center dot OH) from reactions between recyclable solid catalysts and H2O2 at acidic or even circumneutral pH. Hence, it can effectively oxidize refractory organics in water or soils and has become a promising environmentally friendly treatment technology. Due to the complex reaction system, the mechanism behind heterogeneous Fenton reactions remains unresolved but fascinating, and is crucial for understanding Fenton chemistry and the development and application of efficient heterogeneous Fenton technologies. Iron-based materials usually possess high catalytic activity, low cost, negligible toxicity and easy recovery, and are a superior type of heterogeneous Fenton catalysts. Therefore, this article reviews the fundamental but important interfacial mechanisms of heterogeneous Fenton reactions catalyzed by iron-based materials. UOH, hydroperoxyl radicals/superoxide anions (HO2 center dot/O-2 center dot(-)) and high-valent iron are the threemain types of reactive oxygen species (ROS), with different oxidation reactivity and selectivity. Based on the mechanisms of ROS generation, the interfacial mechanisms of heterogeneous Fenton systems can be classified as the homogeneous Fenton mechanism induced by surface-leached iron, the heterogeneous catalysis mechanism, and the heterogeneous reaction-induced homogeneous mechanism. Different heterogeneous Fenton systems catalyzed by characteristic iron-based materials are comprehensively reviewed. Finally, related future research directions are also suggested. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36056
Appears in Collections:环境水质学国家重点实验室_期刊论文

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Recommended Citation:
He, Jie,Yang, Xiaofang,Men, Bin,et al. Interfacial mechanisms of heterogeneous Fenton reactions catalyzed by iron-based materials: A review[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2016,39(0):97-109.
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