Photo-Fenton Induced Multi-Site Peroxymonosulfate Activation Via High Redox Pair Cycling Modified Biochar Nanoarchitecture Nbc@Tio2@Femn for Boosting Degradation of Tetrachloroguaiacol

作     者：Bai, He Yang, Yuxiang Zhang, Jining Yang, Yubing Wang, Chengyin Yuan, Hongming Dong, Mengyang Ni, Chaoying 

作者机构：School of Chemistry and Molecular Engineering East China University of Science & Technology Shanghai200237 China Ecoenvironmental Protection Research Institute Shanghai Academy of Agricultural Sciences Shanghai201403 China Liuzhou Institute of technology Liuzhou Guangxi545616 China College of Chemistry and Chemical Engineering Yangzhou University Yangzhou225002 China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun130012 China Department of Materials Science and Engineering University of Delaware DE19716 United States 

出 版 物：《SSRN》 

年 卷 期：2023年

核心收录：

主　　题：Wastewater treatment 

摘      要：Traditional PMS activation was verified as an efficient method to degrade the refractory pollutant, however, singular active site and total dependence of PMS to promote the circulation of redox pair were the main defects in wastewater treatment. In this work, an attractive strategy was proposed to construct a multi-site and photo-Fenton like nanoarchitecture NBC@TiO2@FeMn (NBTF) with high redox pair cycling rate. Degradation efficiency revealed that the pulp wastewater Tetrachloroguaiacol (TeCG) was removed in the presence of peroxymonosulfate (PMS) and visible light. The multi-sites including NBC and redox pairs (Fe(II)/Fe(III), Mn(II)/Mn(III)/Mn(IV)) play vital roles in degradation. Various influencing factors including pH, temperature and interfering substance were investigated systematically. Quench experiments and EPR spectroscopy revealed that 1O2 and NBTF-4 mediated direct electron transfer played a dominant role in the system. The universality and energy consumption (EEO) of NBTF-4 were also evaluated. Such nanoarchitecture has promising application prospects in emerging contaminants. © 2023, The Authors. All rights reserved.