标题: Single-atom iron catalysts for peroxymonosulfate-based advanced oxidation processes: Coordination structure versus reactive species

作者: Cheng, C (Cheng, Cheng); Ren, W (Ren, Wei); Zhang, H (Zhang, Hui); Duan, XG (Duan, Xiaoguang); Wang, SB (Wang, Shaobin)

来源出版物: CHINESE JOURNAL OF CATALYSIS 卷: 59 页: 15-37 DOI: 10.1016/S1872-2067(23)64611-X Published Date: 2024 APR

摘要: Heterogeneous peroxymonosulfate (PMS)-based oxidation technology for water treatment requires innovative catalysts for efficient and selective production of desired reactive oxygen species (ROS), such as free radicals, singlet oxygen, catalyst-PMS* complexes, and high-valent metal-oxo species. Single-atom catalysts are featured with the maximized atom utilization as well as uniform and well-defined active sites, holding a great promise for effective and selective PMS activation. However, the structure-activity/selectivity relationships have not yet been well revealed owing to multiple ROS generation pathways and their complex interplay. Herein, we focus on the mechanisms of PMS activation by single-atom iron catalysts and identify the relationships of the geometric and electronic structures of single atom Fe centers to selective production of different reactive species/pathways. Moreover, in situ/operando techniques to monitor the dynamic evolution of active sites under practical working conditions and design of binuclear metal sites for synergistic catalysis will also be discussed. (c) 2024, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

作者关键词: Peroxymonosulfate activation; Single-atom iron catalyst; Radical; Nonradical; Water treatment; Environmental remediation

地址: [Cheng, Cheng; Zhang, Hui] Wuhan Univ, Sch Resource & Environm Sci, Dept Environm Sci & Engn, Wuhan 430079, Hubei, Peoples R China.

[Cheng, Cheng; Ren, Wei; Duan, Xiaoguang; Wang, Shaobin] Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia.

通讯作者地址: Zhang, H (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Dept Environm Sci & Engn, Wuhan 430079, Hubei, Peoples R China.

Duan, XG; Wang, SB (通讯作者)，Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia.

电子邮件地址: eeng@whu.edu.cn; xiaoguang.duan@adelaide.edu.au; shaobin.wang@adelaide.edu.au

影响因子：15.7