文献类型：期刊文献

英文题名：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[1]; Yang, Yuxiang[1]; Zhang, Jining[2]; Yang, Yubing[3]; Wang, Chengyin[4]; Yuan, Hongming[5]; Dong, Mengyang[1]; Ni, Chaoying[6]

机构：[1] School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China; [2] Ecoenvironmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China; [3] Liuzhou Institute of technology, Liuzhou, Guangxi, 545616, China; [4] College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China; [5] State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China; [6] Department of Materials Science and Engineering, University of Delaware, DE, 19716, United States

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230137351)

语种：英文

外文关键词：Chemical activation - Degradation - Electron spin resonance spectroscopy - Electron transitions - Energy utilization - Iron compounds - Manganese compounds - Titanium dioxide

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.