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Single-Atom Mn-N-4 Site-Catalyzed Peroxone Reaction for the Efficient Production of Hydroxyl Radicals in an Acidic Solution
Guo, Zhuang; Xie, Yongbin; Xiao, Jiadong; Zhao, Zhi-Jian; Wang, Yuxian; Xu, Zhaomeng; Zhang, Yi; Yin, Lichang; Cao, Hongbin; Gong, Jinlong
2019-07-31
Source PublicationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN0002-7863
Volume141Issue:30Pages:12005-12010
AbstractThe peroxone reaction between O-3 and H2O2 has been deemed a promising technology to resolve the increasingly serious water pollution problem by virtue of the generation of superactive hydroxyl radicals ((OH)-O-center dot), but it suffers greatly from an extremely limited reaction rate constant under acidic conditions (ca. less than 0.1 M-1 s(-1) at pH 3). This article describes a heterogeneous catalyst composed of single Mn atoms anchored on graphitic carbon nitride, which effectively overcomes such a drawback by altering the reaction pathway and thus dramatically promotes (OH)-O-center dot generation in acid solution. Combined experimental and theoretical studies demonstrate Mn-N-4 as the catalytically active sites. A distinctive catalytic pathway involving HO2 center dot formation by the activation of H2O2 is found, which gets rid of the restriction of HO2- as the essential initiator in the conventional peroxone reaction. This work offers a new pathway of using a low-cost and easily accessible single-atom catalyst (SAC) and could inspire more catalytic oxidation strategies.
Indexed BySCI
Language英语
WOS IDWOS:000479018200042
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80888
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Guo, Zhuang,Xie, Yongbin,Xiao, Jiadong,et al. Single-Atom Mn-N-4 Site-Catalyzed Peroxone Reaction for the Efficient Production of Hydroxyl Radicals in an Acidic Solution[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2019,141(30):12005-12010.
APA Guo, Zhuang.,Xie, Yongbin.,Xiao, Jiadong.,Zhao, Zhi-Jian.,Wang, Yuxian.,...&Gong, Jinlong.(2019).Single-Atom Mn-N-4 Site-Catalyzed Peroxone Reaction for the Efficient Production of Hydroxyl Radicals in an Acidic Solution.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,141(30),12005-12010.
MLA Guo, Zhuang,et al."Single-Atom Mn-N-4 Site-Catalyzed Peroxone Reaction for the Efficient Production of Hydroxyl Radicals in an Acidic Solution".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 141.30(2019):12005-12010.
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