南京工业大学学报（自然科学版）2025，Vol.47Issue(3)：336-348,13.DOI:10.3969/j.issn.1671-7627.2025.03.013
光催化剂β-FeOOH的制备及其催化降解左氧氟沙星的性能与机制分析
The preparation of β-FeOOH photocatalyst and its performances and mechanism in the catalytic degradation of levofloxacin
摘要
Abstract
This study investigates the degradation performance and mechanism of β-FeOOH photocatalyst for the removal of levofloxacin(LEV)under visible-light irradiation.The β-FeOOH catalyst was synthesized via a hydrothermal method,and its structural and surface properties were characterized.The photocatalytic efficiency of β-FeOOH toward LEV was examined under varying conditions,including the mass concentrations of LEV,catalyst,and H2O2,and initial pH.Electron paramagnetic resonance(EPR)spectroscopy was employed to identify the key reactive oxygen species involved in the degradation process and to investigate the reaction mechanism.The results showed that under optimal conditions,30 mg/L LEV,200 mg/L H2O2,100 mg/L β-FeOOH,and an initial pH of 7,the system achieved complete degradation of LEV within 20 minutes and 100％removal of total organic carbon(TOC)within 180 minutes.EPR and quenching experiments demonstrated that hydroxyl radicals(·OH)and superoxide anions(·O2-)were the main reactive oxygen species involved in the β-FeOOH photocatalytic degradation of LEV.The β-FeOOH photocatalyst developed in this study provides an efficient and environmentally friendly solution for the treatment of contaminated water bodies.关键词
β-FeOOH/光催化/左氧氟沙星(LEV)/活性氧物种/降解Key words
β-FeOOH/photocatalysis/levofloxacin(LEV)/reactive oxygen species(ROS)/degradation分类
资源环境引用本文复制引用
付欢,郑云,蒋永琪,王建米,周俊,雍晓雨..光催化剂β-FeOOH的制备及其催化降解左氧氟沙星的性能与机制分析[J].南京工业大学学报（自然科学版）,2025,47(3):336-348,13.基金项目
江苏省农业科技自主创新资金(CX(24)3115) （CX(24）
