Advances in Atomically Dispersed Metal and Nitrogen Co-Doped Carbon Catalysts for Advanced Oxidation Technologies and Water Remediation: From Microenvironment Modulation to Non-Radical Mechanisms.

Autor: Ma W; College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, 224051, P. R. China., Ren X; College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, 224051, P. R. China., Li J; College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, 224051, P. R. China., Wang S; College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, 224051, P. R. China., Wei X; College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, 224051, P. R. China., Wang N; Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450052, P. R. China., Du Y; MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
Jazyk: angličtina
Zdroj: Small (Weinheim an der Bergstrasse, Germany) [Small] 2024 May; Vol. 20 (22), pp. e2308957. Date of Electronic Publication: 2023 Dec 19.
DOI: 10.1002/smll.202308957
Abstrakt: Atomically dispersed metal and nitrogen co-doped carbon catalysts (M-N-C) have been attracting tremendous attentions thanks to their unique MN x active sites and fantastic catalytic activities in advanced oxidation technologies (AOTs) for water remediation. However, precisely tailoring the microenvironment of active sites at atomic level is still an intricate challenge so far, and understanding of the non-radical mechanisms in persulfate activation exists many uncertainties. In this review, latest developments on the microenvironment modulation strategies of atomically dispersed M-N-C catalysts including regulation of central metal atoms, regulation of coordination numbers, regulation of coordination heteroatoms, and synergy between single-atom catalysts (SACs) with metal species are systematically highlighted and discussed. Afterwards, progress and underlying limitations about the typical non-radical pathways from production of singlet oxygen, electron transfer mechanism to generation of high-valent metal species are well demonstrated to inspire intrinsic insights about the mechanisms of M-N-C/persulfate systems. Lastly, perspectives for the remaining challenges and opportunities about the further development of carbon-based SACs in environment remediation are also pointed out. It is believed that this review will be much valuable for the further design of active sites in M-N-C/persulfate catalytic systems and promote the wide application of SACs in various fields.
(© 2023 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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