Issue 30, 2024

Correlating active sites and oxidative species in single-atom catalyzed Fenton-like reactions

Abstract

Single-atom catalysts (SACs) have gained widespread popularity in heterogeneous catalysis-based advanced oxidation processes (AOPs), owing to their optimal metal atom utilization efficiency and excellent recyclability by triggering reactive oxidative species (ROS) for target pollutant oxidation in water. Systematic summaries regarding the correlation between the active sites, catalytic activity, and reactive species of SACs have rarely been reported. This review provides an overview of the catalytic performance of carbon- and metal oxide-supported SACs in Fenton-like reactions, as well as the different oxidation pathways induced by the metal and non-metal active sites, including radical-based pathways (e.g., ·OH and SO4˙) and nonradical-based pathways (e.g.1O2, high-valent metal-oxo species, and direct electron transfer). Thereafter, we discuss the effects of metal types, coordination environments, and spin states on the overall catalytic performance and the generated ROS in Fenton-like reactions. Additionally, we provide a perspective on the future challenges and prospects for SACs in water purification.

Graphical abstract: Correlating active sites and oxidative species in single-atom catalyzed Fenton-like reactions

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Article information

Article type
Review Article
Submitted
20 Apr 2024
Accepted
29 Jun 2024
First published
03 Jul 2024
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2024,15, 11699-11718

Correlating active sites and oxidative species in single-atom catalyzed Fenton-like reactions

J. Miao, Y. Jiang, X. Wang, X. Li, Y. Zhu, Z. Shao and M. Long, Chem. Sci., 2024, 15, 11699 DOI: 10.1039/D4SC02621G

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