Coordination dependent photocatalytic peroxymonosulfate activation on biomass derived Fe single atom catalysts for atrazine degradation
文献类型： 外文期刊
作者： Liu, Xue 1 ; Zhang, Jiguang 1 ; Wang, Shuaijun 2 ; Yuan, Yuan 1 ; Yu, Weisong 1 ; Fang, Song 1 ; Kong, Fanyu 1 ; Qiu, Jun 1 ; Wang, Shaobin 3 ; Zhang, Jinqiang 3 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Tobacco Res, Qingdao 266101, Peoples R China
2.Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Jiangsu, Peoples R China
3.Univ Adelaide, Sch Chem Engn, Adelaide 5005, Australia
关键词： Biomass derived SAC; Coordination; Peroxymonosulfate activation; Atrazine degradation; Wastewater treatment
期刊名称：CHEMICAL ENGINEERING JOURNAL （ 影响因子：13.2； 五年影响因子：13.5 ）
ISSN： 1385-8947
年卷期： 2024 年 499 卷
页码：
收录情况： SCI
摘要： Challenges associated with uncontrollable metal coordination structures in biomass-derived single-atom catalysts (SACs) and their intricate impacts on photocatalytic peroxymonosulfate (PMS) activation pose significant hurdles for the application of photo-Fenton technology towards wastewater treatment. Herein, we employed a co-pyrolysis strategy using Enteromorpha prolifera (E. E. prolifera) ) to synthesize Fe SACs with varying Fe-N-X coordination, i.e., Fe-N-5 and Fe-N-6. Fe-N-6-based SAC achieved over 80% atrazine (ATZ) degradation in 15 min, with a degradation rate of 0.13 min(-1), representing 2.6-fold improvement over SAC with Fe-N-5 structure. Experimental and simulation results revealed that Fe-N-6 active sites acted as electron donors, enhancing the delocalization of it-electrons and improving photocatalytic PMS activation. This SAC also exhibited high selectivity for O-1(2) degradation pathway and impressive ATZ degradation in seawater, with notable chlorine resistance, underscoring its potential in environmental pollutant remediation. This work unveils the catalyst structurephotocatalytic PMS activation performance relationship, offering avenue for developing more sustainable and efficient biomass-derived SACs for wastewater treatment.
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