S-scheme heterojunction construction of Fe/BiOCl/BiVO4 for enhanced photocatalytic degradation of ciprofloxacin
作者机构：School of Hydraulic and Environmental EngineeringChangsha University of Science&TechnologyChangsha410114PR China Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan ProvinceChangsha410114PR China School of Environmental EngineeringWuhan Textile UniversityWuhan430073PR China
出 版 物：《自然科学进展·国际材料(英文)》 (Progress in Natural Science：Materials International)
年 卷 期：2024年第34卷第2期
页 面：290-303页
核心收录：
基 金：Scientific Research Foundation of Hunan Provincial Education Department, (22A0206) Scientific Research Foundation of Hunan Provincial Education Department Water Conservancy Science and Technology Project of Jiangsu Province, (XSKJ2023059-37, XSKJ2022068-03) Water Conservancy Science and Technology Project of Jiangsu Province Scientific Research Projects of Ecology and Environment Department of Hunan, (HBKT-2021012) National Natural Science Foundation of China, NSFC, (52100161) National Natural Science Foundation of China, NSFC
主 题：BiOCl/BiVO4 Fe3+ doping Organic pollutant Photocatalysis S-scheme heterojunction
摘 要：With the growing problem of water pollution caused by antibiotics,the development of photocatalysts with high photogenerated carrier separation efficiency is crucial.A high-efficiency microsphere Fe/BiOCl/BiVO4 with S-scheme heterojunction was synthesized by solvothermal method and its ciprofloxacin(CIP)degradation perfor-mance were investigated under visible ***,FT-IR,SEM,EDS,HRTEM and XPS results show that the photocatalytic have good crystallization,morphology and the formed a *** photocatalytic perfor-mance of Fe/BiOCl/BiVO4 for CIP was superior to pure BiOCl and BiVO4 due to the microsphere and formed heterostructure between BiOCl and *** influencing factors of CIP degradation by Fe/BiOCl/BiVO4 were investigated,and the results showed that Fe/BiOCl/BiVO4 had high degradation efficiency not only at pH 5-9,but also in the presence of inorganic Cl-,NO3-and metal *** the optimal conditions,the degradation rate of CIP was up to 100%in 75 *** addition to CIP,the Fe/BiOCl/BiVO4 photocatalysts degraded other organic pollutants,such as tetracycline,oxytetracycline,chlortetracycline,ofloxacin,levofloxacin,and rhodamine B,by more than 92%.The main active species were photogenerated holes(h+)and superoxide radicals(·O2-).In addition,possible intermediates and toxicity of intermediates were analyzed and five potential pathways for CIP degradation were proposed.