TiO_(2)光阳极材料光-电催化降解恩诺沙星影响因素研究  

Factors Affecting Photo-electrocatalytic Degradation of Enrofloxacin by TiO_(2) Photoanode

作　　者：周守平 张同飞 陈田田 杜邦昊 李妮[2] 姜瑞雪[2] ZHOU Shou-ping;ZHANG Tong-fei;CHEN Tian-tian;DU Bang-hao;LI Ni;JIANG Rui-xue(Shandong Water Diversion Project Operation and Maintenance Center,Jinan,China;College of Water Conservancy and Civil Engineering/Shandong Agricultural University,Tai'an 271018,China)

机构地区：[1]山东省调水工程运行维护中心,山东济南250100 [2]山东农业大学水利土木工程学院,山东泰安271018

出　　处：《山东农业大学学报（自然科学版）》2024年第4期495-501,共7页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：宜居乡村供水安全保障及污染物协同资源化绿色低碳治理关键技术研发与示范(2023TZXD019);光-电耦合氧化体系构建及灭藻效应机理研究(2022ZJ1095);单过硫酸盐氧化体系中消毒副产物生成机制的研究(ZR2022OE215)。

摘　　要：制备二氧化钛(TiO_(2))光阳极材料,通过表征手段考察其形貌、晶相与元素组成特征。TiO_(2)纳米棒形成纳米管阵列,在XRD图谱27.5°、36.1°、37.8°和62.7°处有明显特征峰,无明显杂峰,Ti元素以Ti^(4+)的形式存在。选取一种喹诺酮类抗生素恩诺沙星(ENR)作为目标污染物,探究光-电催化体系下TiO_(2)光阳极材料对ENR降解的影响因素。实验结果表明,ENR初始浓度为10mg/L,电解质NaCl浓度为0.10mol/L,外加偏压为1.2V,初始pH值为7时,TiO_(2)光阳极材料对ENR的光-电催化降解率可达90.74%,经四次循环实验材料保持了良好的稳定性,在抗生素降解方面具有较大的应用潜力。We prepared Titanium dioxide(TiO_(2))photoanode,and investigated its morphology,crystal phase,and element composition by characterization means.TiO_(2) nanorods form nanotube arrays with distinct characteristic peaks at 27.5°,36.1°,37.8°,and 62.7°of the XRD pattern,without obvious hybrid peaks.Ti element exists in the form of Ti^(4+).A quinolone antibiotic enrofloxacin(ENR)was selected as the target pollutant to explore the influence factors of TiO_(2) photoanode material on ENR degradation in the photoelectrocatalytic system.The experimental results showed that the photo-electrocatalytic degradation efficiency of TiO_(2) photoanode could reach 90.74%when the initial concentration of ENR was 10 mg/L,the concentration of NaCl was 0.10 mol/L,the applied bias voltage was 1.2 V,and the initial pH value was 7.TiO_(2) photoanode maintained good stability after four recycling experiments and it exhibits great application potential in antibiotics degradation.

关 键 词：光-电催化 二氧化钛 光阳极 恩诺沙星 降解 

分 类 号：X52[环境科学与工程—环境工程]