Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

The polymerization pathway of contaminants rivals the traditional mineralization in water purification technologies. However, designing suitable oxidative environments to steer toward remains challenging. This study introduces a nitrogen-oxygen double coordination strategy create an asymmetrical microenvironment for Co atoms on Ti3C2Tx MXenes, resulting novel Co-N2O3 microcellular structure that efficiently activates peroxymonosulfate. unique activation capability led complete removal various phenolic pollutants within 3 min, outperforming representative single-atom catalysts reported past three years. Identifying and recognizing reactive oxygen species highlight crucial role ⋅O2 -. efficient pollutant occurs through --mediated radical pathway, functioning as self-coupling reaction rather than deep oxidation. Theoretical calculations demonstrate electron-rich transfer more electrons catalyst surface, inducing reduction dissolved - microregion. In practical continuous flow-through application, system achieved 100 % acetaminophen efficiency 6.5 h, with hydraulic retention time just 0.98 s. provides new insights into previously underappreciated purification, offering simple advancing aggregation technology field wastewater treatment.

Language: Английский