文献类型：期刊文献

英文题名：CuxFey-LDO/NF-catalyzed non-radical peroxymonosulfate activation via metal-ratio modulation and metal-support interaction for selective oxidation of electron-rich pollutants

作者：Wang, Chun[1,2];Wang, Yun[1,3];Li, Luyu[1];Lei, Juying[4];Jia, Daqing[2];Jiang, Yue[2];Cui, Changzheng[2,4];Habibul, Nuzahat[1,3];Xing, Mingyang[1,2]

机构：[1]Xinjiang Normal Univ, Coll Chem & Chem Engn, Urumqi 830054, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Green Chem Engn & Ind Catalysis, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Xinjiang Normal Univ, Tech Res Ctr Environm Geotech Engn Restorat & Reso, Urumqi 830054, Peoples R China;[4]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2027

卷号：400

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001822235100001)】；

基金：This work was supported by the National Key R&D Program of China (No. 2024YFC3712704), Tianshan Talent Training Program of Xinjiang (2022TSYCCX0010), National Natural Science Foundation of China (52160023, 22521201, 22325602), "Youth talent support program" of Xinjiang Normal University (XJNUQB2022-24), the Fundamental Research Funds for the Central Universities (JKJ01251536) and the National College Student Innovation and Entrepreneurship Training Program (X202410762035).

语种：英文

外文关键词：Nonradical catalysis; Cu 2 Fe layered double oxide; Nickel foam; Peroxymonosulfate activation; Electron-rich organic pollutants

摘要：Effective regulation of non-radical pathways and catalyst recoverability are essential for enhancing catalytic adaptability and operational safety in complex water environments. Herein, a hydrolytic-precursor calcination strategy is employed to prepare a catalyst comprising a self-supported Cu2Fe layered double oxide on nickel foam (Cu2Fe-layered double oxides (LDO)/NF) for the sustainable degradation of electron-rich pollutants. Adjusting the element doping ratio enables directional switching of the pollutant degradation pathway and regulates the balance between radical and non-radical oxidation, whereby electrophilic species (1O2/FeIV=O) initially attack the electron-rich amino group to form intermediates, which are subsequently mineralized into small molecules through subsequent radical oxidation. The nickel foam support induces strong metal-support interaction, redistributes electron density at Cu2Fe-LDO interfacial metal sites, enhances peroxymonosulfate (PMS) adsorption, and optimizes the electronic structure of the catalyst surface. The Cu2Fe-LDO/NF/PMS system exhibits high robustness in complex water matrices, broad pH applicability, and excellent reusability, with 100% degradation of the target pollutants after 720 min in continuous-flow reactor and after six consecutive cycles. The proposed catalyst demonstrates an effective strategy for regulating nonradical generation during PMS activation, providing a practical and reusable solution for sustainable wastewater treatment.