SnO2-Sb电催化膜对左氧氟沙星的去除性能研究
Research on the removal performance of levofloxacin by SnO2-Sb electrocatalytic membrane
The electrocatalytic membranes of CM/SnO2-Sb were prepared by electrodeposition-hydrothermal modification,and the conditions for electrocatalytic degradation of levofloxacin were optimized.FESEM (Field emission scanning electron microscope),EDS (Energy dispersive spectrometer),XRD (X-ray diffraction),XPS (X-ray photoelectron spectroscopy),LSV (Linear sweep voltammetry),EIS (Electrochemical impedance spectroscopy),CV (Cyclic voltammetry) and other methods were used to characterize and analyze the electrocatalytic membranes.The results indicate that under preparation conditions of 6 V for 30 minutes,SnO2-Sb is well loaded onto the surface of the carbon membrane (CM).The doping of SnO2-Sb provides a larger specific surface area for the CM,offering more reaction sites for the degradation of LEV;compared to CM,its specific capacitance increases from 430 F/g to 1 721.04 F/g,and the electrochemical impedance decreases from 672 Ω to 185 Ω.The optimal range of LEV concentration,voltage and electrolyte concentration was investigated by single factor experiment.The optimal operating conditions were optimized by the response surface:LEV concentration of 72.4 mg/L,operating voltage of 2.6 V,and electrolyte concentration of 7.4 g/L,at which the LEV removal rate could reach 95.91% and the membrane differential pressure change value (ΔTMP) was only 0.390 kPa.
电沉积 / 响应面法 / 左氧氟沙星 / 膜制备 / 电催化
electrodeposition / response surface methodology / levofloxacin / membrane preparation / electrocatalysis
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常州市重点研发计划(产业前瞻与关键核心技术,CE20230036)
常州市2025年度高层次人才“双岗互聘计划”(202537884)
常州大学大学生创新创业训练计划项目(X202510292244)
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