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祝贺崔佳豪同学研究成果在Applied Catalysis B: Environmental杂志发表。
发布时间:2023-03-30


Abstract

Single-atom Fe catalysis has exhibited remarkable potentials in water treatment applications. However, rational  design of single-atom Fe catalysts with controlled catalytic performance is still challenging, due to the lack of the  fundamental understanding on the corelated factors of structure, property, and catalytic behavior. Herein, PMS  activation performance of the single-atom Fe sites is successfully boosted by molecular-engineering on the  polymeric carbon nitride (CN) framework. Benzene-1,4-diamine regulates the polymerization process, and rises  the ratio of carbon/nitrogen; the valence of the single-atom Fe is thereby positively shifted, leading to favorable  thermal dynamics of the high-valent Fe(IV)=O involved oxidation reaction. The carbon-rich CN supported single-atom Fe catalyst thus exhibits remarkable performance in selective degradation of a series of organic pollutants  via high-valent Fe(IV)=O oxidation pathway. The findings in this work implicate the significance of electronic  properties of the support as one of the essential descriptors for a robust single-atom catalyst for pollutants  abatement. 


Applied Catalysis B: Environmental, 2023, 331, 122706. 

https://doi.org/10.1016/j.apcatb.2023.122706