文献类型：期刊文献

英文题名：Boosting peroxymonosulfate activation with molten salt-constructed carbon-doped CoFe spinel for robust micropollutant degradation

作者：Wang, Yun[1];Gan, Defu[1];Zhang, Wenli[1];Lu, Jinjie[2];Liao, Hongping[1];Zeng, Yifeng[1];Xiao, Huiji[1];Luo, Xubiao[1];Zhou, Yanbo[1,2,3]

机构：[1]Jinggangshan Univ, Sch Life Sci, Key Lab Jiangxi Prov Funct Biol & Pollut Control R, Jian 343009, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Environm Risk Assessment & Control Chem Pr, Minist Ecol & Environm, Shanghai 200237, Peoples R China;[3]Minist Educ, Engn Res Ctr Resource Utilizat Carbon Containing W, Shanghai 200237, Peoples R China

年份：2026

卷号：401

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20262120745677);WOS:【SCI-EXPANDED(收录号:WOS:001780750700001)】；

基金：This work is supported by the National Natural Science Foundation of China (Grant No. U25A20371 & 52370168) , and the Joint Fund of Jiangxi Provincial Natural Science Foundation (Grant No. 20253BAC280127) . The manuscript was written with contributions from all authors. All authors have approved the final version of the manuscript.

语种：英文

外文关键词：Bimetallic spinel oxides; Peroxymonosulfate; Organic micropollutant; Degradation

摘要：The proliferation of e-commerce and food delivery services has significantly increased the use of thermal paper for shipping labels and receipts, leading to the persistent release of endocrine-disrupting chemicals such as bisphenol A (BPA) into aquatic environments, posing a serious threat to ecosystem integrity and human health. Advanced oxidation processes based on peroxymonosulfate (PMS) offer a promising solution, yet their efficiency depends critically on high-performance catalysts. Although bimetallic spinel oxides are considered effective PMS activators, their practical application is often limited by insufficient active site exposure and sluggish electron transfer kinetics. To address these challenges, we developed a one-step molten-salt pyrolysis strategy to synthesize carbon-doped iron-cobalt spinel oxides (FeCoOx/C). The optimal catalyst (FeCoOx/C-400) demonstrated rapid degradation kinetics and high catalytic utilization efficiency. Mechanistic studies revealed that spontaneous electron transfer from Fe2+ to Co3+ (Delta E = 1.04 eV) significantly accelerates Co2+ regeneration, thereby enhancing PMS activation. The degradation process proceeds mainly through radical pathways, accompanied by the participation of non-radical singlet oxygen (1O2). Importantly, the catalyst demonstrated excellent recyclability, strong resistance to common anions, and effective BPA degradation in various real water matrices including leachates from discarded thermal paper, while also significantly reducing ecological toxicity. This study provides both a highly efficient and easily synthesized catalyst for PMS-based water purification and fundamental insights into the design of bimetallic redox catalysts, thereby contributing to the development of sustainable environmental remediation technologies.