文献类型：期刊文献

英文题名：Activation of Peroxymonosulfate By Laco3oh Coupled with N, S Co-Doped Graphene for Levofloxacin Degradation

作者：Pei, Wenkai[1,2]; Wang, Yu[1,2]; Liu, Yujie[2,3]; Zhou, Liang[1,2,4,5]; Lei, Juying[1,2,4]; Zhang, Jinlong[1,2,3]

机构：[1] National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] ShanghaiEngineeringResearchCenterforMulti-mediaEnvironmentalCatalysisandResourceUtilization, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; [3] Key Laboratory for Advanced Materials, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of ChemistryandMolecularEngineering, EastChinaUniversityofScienceandTechnology, 130MeilongRoad, Shanghai, 200237, China; [4] Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China; [5] State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230375966)

语种：英文

外文关键词：Antibiotics - Catalysts - Chemical activation - Electron transitions - Energy dissipation - Free radical reactions - Lanthanum compounds - Metal ions - Orbits - Rare earth elements - Rare earths - Wastewater treatment

摘要：The activation of peroxymonosulfate (PMS) by metal-based materials is currently considered to have great potential for pollutant treatment. However, secondary environmental damage from common transition metals is often unavoidable. Rare earth metals with high energy level, multi-electron configuration and unique 4f orbital can be used as an electron transfer bridge to reduce interfacial energy loss and promote electron transfer, which were incorporated the catalyst to activate PMS. In this study, calcination and hydrothermal method were combined to fabricated LaCO3OH coupled with N, S co-doped graphene(LCOH/GNS), which exhibited superior catalytic performance in PMS activation for LVX degradation. LaCO3OH(LCOH) was first used for PMS activation and showed excellent degradation properties and reduced ecotoxicity. The doping of N and S in the graphene matrix enhances the adsorption of PMS, electron transfer and reduces metal ion leaching, thus promoting the interaction and reaction between LCOH and PMS. The degradation process may involve multiple-oxidative pathways, which was confirmed by radical quenching experiments and the EPR technique. This study provided a novel method for the rational design of rare earth metal based-carbon catalysts, and LCOH/GNS-PMS was expected to be a promising technology for antibiotic degradation in wastewater treatment. ? 2023, The Authors. All rights reserved.