科学网-云师大化工学院赵学教授、浙江海洋大学周英堂教授在《Chemical Engineering Journal》发表研究成果-蒋金和的博文

云师大化工学院赵学教授、浙江海洋大学周英堂教授在《Chemical Engineering Journal》发表研究成果

2025-5-28 13:08

阅读：423

2025年5月26日，ScienceDirect旗下top期刊《Chemical Engineering Journal》在线发表了云南师范大学化学与化工学院赵学教授、浙江海洋大学周英堂教授、玉溪师范学院Zenghui Han等团队合作的最新研究成果《Controlled construction of single-atom iron by confined engineering to promote the elimination of harmful organic pollutants》。云南师范大学化学与化工学院赵学教授、云南大学胡广志教授、玉溪师范学院Zenghui Han为共同通讯作者。

https://www.sciencedirect.com/science/article/pii/S1385894725049484

1-s2.0-S1385894725049484-ga1_lrg.jpg

Abstract

Advanced oxidation processes (AOPs) utilizing peroxymonosulfate (PMS) are crucial for the degradation of refractory organic pollutants but depend heavily on high-performance catalysts. In this study, we developed a dual confinement strategy to precisely anchor atomically dispersed iron sites on porous honeycomb-like nitrogen-doped hollow carbon spheres (HNHC), enabling strong PMS activation and highly efficient degradation of bisphenol A (BPA). Using Fe/HNHC as the catalyst, the BPA degradation rate reached 92.5% within 30 min, and the catalyst maintained high activity through repeated cycles. Fe/HNHC exhibited resilience against interference from complex water environments and effectively degraded a wide range of harmful organic pollutants. Density functional theory (DFT) calculations revealed the spontaneous adsorption and activation of PMS on Fe/HNHC, while electron paramagnetic resonance (EPR) confirmed the generation of reactive oxygen species (·OH, SO4·-, and 1O2) with strong oxidative potential, facilitating pollutant removal. From an application standpoint, Fe/HNHC demonstrated continuous removal of organic pollutants, including BPA, when employed as the core of a purification column in continuous cell. Additionally, the degradation pathway and fate of BPA were elucidated. This study provides both experimental validation and theoretical insights for the application of AOPs in organic wastewater purification, accelerating the development of high-performance AOP catalysts.