天津科技大学学报2025，Vol.40Issue(4)：66-72,7.DOI:10.13364/j.issn.1672-6510.20240055
Bi25FeO40/TiO2光芬顿协同催化降解氧氟沙星
Degradation of Ofloxacin by Photo-Fenton Synergistic Photocatalysis Using Bi25FeO40/TiO2
摘要
Abstract
To address the issues of recycling difficulty and agglomeration in powdered materials,titanium dioxide nano-materials were prepared by anodic oxidation method using titanium sheets as the anode,platinum sheets as the cathode and NH4F as the electrolyte.A recyclable binary composite material was successfully obtained by simultaneously loading Bi25FeO40 onto the prepared titanium dioxide nanomaterials via hydrothermal assistance.Moreover,the crystallographic structure and morphology of the materials were characterized by X-ray diffraction(XRD),scanning electron micro-scope(SEM)and transmission electron microscope(TEM),and the photo-Fenton catalytic properties of the composites were evaluated using ofloxacin as the model pollutant.The results showed that TiO2 was anatase crystalline phase and Bi25FeO40 was successfully loaded on the surface of TiO2.The presence of Bi25FeO40 improved the efficiency of the photo-Fenton deg-radation of ofloxacin(OFL)by TiO2.At an H2O2 dosage of 4 mL/L and a pH value of 3,the Bi25FeO40/TiO2 system demon-strated the degradation of OFL up to 64.4%under 180 minutes of simulated solar irradiation,exhibiting a degradation rate constant(k)of 0.00492 min-1.关键词
二氧化钛(TiO2)/Bi25FeO40/光芬顿/水热法/氧氟沙星Key words
titanium dioxide(TiO2)/Bi25FeO40/photo-Fenton/hydrothermal/ofloxacin分类
化学化工引用本文复制引用
郭沈佳,李丹芹,颜仪,张武..Bi25FeO40/TiO2光芬顿协同催化降解氧氟沙星[J].天津科技大学学报,2025,40(4):66-72,7.基金项目
国家自然科学基金项目(51503148) （51503148）
