文献类型：期刊文献

英文题名：Fe, N-decorated carbocatalyst based on Fe-MOF as PDS activator for efficient sulfadiazine degradation: An electron transfer process

作者：Xu, Jiayi[1,2];Li, Shuang[1,2];Zhang, Wei[1,2,3];Xiu, Guangli[1,2,3]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Environm Protect Key Lab Environm Stand &, Shanghai 200237, Peoples R China;[3]Tongji Univ, Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2025

卷号：80

起止页码：248

外文期刊名：CHINESE JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20251418186442);WOS:【SCI-EXPANDED(收录号:WOS:001469157200001)】；

基金：This work is supported by Key Research and Development Projects of Shanghai Municipal Commission of Science and Tech-nology (20dz120400 0) .

语种：英文

外文关键词：Carbocatalyst; Iron; Peroxydisulfate; Electron transfer; Sulfadiazine

摘要：In this study, a Fe, N-decorated carbocatalyst (FeCN@X) based on Fe-MOFs was synthesized to activate peroxydisulfate (PDS) for removing sulfadiazine (SDZ) from water. The surface morphology and structure of FeCN@X was characterized by scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spec troscopy. FeCN@100 0, formed at the pyrolysis temperature of 1000 degrees C, exhibited the best catalytic performance for degrade SDZ in the presence of 0.15 g center dot L-1 catalyst and 0.5 mmol center dot L-1 PDS, and the reaction conversion rate was 0.199 L center dot mmol-1. Moreover, the effects of experimental conditions, coexisting anions and fulvic acid on catalytic performance of FeCN@100 0 were investigated. The excellent potential of FeCN@100 0 as a PDS activator in environmental applications was also suggested by the results of its reusability and adaptability experiments. The result of XPS, ROS quenching, EPR and electrochemical experiments showed the degradation of SDZ was primarily driven by an electron transfer process (ETP). Furthermore, Fe(III) instead of Fe(II) plays a major role in ETP, as Fe(III) sites can interact with PDS and form the low-spin surface complexes (Fe(III)/CN-PDS). Meanwhile, the small number of 1O2 and O2- generated by the activation of PDS will promote the system degradation of SDZ activity by accelerating the conversion of Fe(II) to Fe(III). This study provides new insights for the design of novel PDS activator for efficient degradation of emerging pollutants by ETP. (c) 2025 Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.