Pt/TiO_2纳米管对药品中布洛芬的光电催化转化研究  

Study on Photo-electrocatalytic Degradation of Ibuprofen by Pt/TiO_2 Nanotube

作　　者：田祯[1] 刘亚玲 彭亮 崔艳萍[1] 梁莉莉[1] 徐佳丽[1] 秦艳艳[1] TIAN Zhen;LIU Yaling;PENG Liang;CUI Yanping;LIANG Lili;XU Jiali;QIN Yanyan(School of Environment Studies,China University of Geosciences（Wuhan）,Wuhan 430000,Chin)

机构地区：[1]中国地质大学(武汉)环境学院,湖北武汉430000

出　　处：《环境科学与技术》2018年第7期30-35,共6页Environmental Science & Technology

基　　金：国家自然科学基金项目(41772262);湖北省自然科学基金(2016CFB609);中国地质大学(武汉)优秀青年教师提升计划(CUGL170209)

摘　　要：布洛芬(IBP)是一种使用量和环境排放量巨大的典型消炎止痛药品,其化学性质稳定且难生物降解,导致地表水中出现越来越多的IBP污染物累积。文章借助电化学沉积技术,将贵金属Pt负载到Ti O_2纳米管上,以此为工作电极,实现可见光下IBP的光电催化氧化降解。论文首先完成载Pt/Ti O_2纳米管的制备,通过场发射扫描电镜和能谱仪对材料进行形貌表征及成分分析;系统研究了布洛芬初始浓度、溶液pH值、电极表面载Pt量及外加电压因素对光电催化降解IBP的影响。该反应体系为可见光下IBP的光电催化降解提供新的技术方法。Ibuprofen（IBP）,a commonly-used anti-inflammatory agent,has been accumulated in the environment for years due to its chemical stability,being recalcitrant to bio-degradation.In this paper,the Pt/Ti O2nanotube was made using the galvanostatic eletro-deposition technology,thus Pt being loaded onto Ti O2nanotube,and its characteristics were studied by SEM and EDS.With Pt/Ti O2nanotube as a working anode electrode,the experiment of photo-electrocatalytic degradation of IBP was conducted under visible light,which was focused on the factors affecting IBP degradation,including initial concentration of the solution,p H value,Pt amount loaded on the electrode surface and the impressed voltage.In summary,the reaction system of photo-electrocatalytic under visible light provided a novel approach to IBP degradation.

关 键 词：布洛芬 电沉积Pt/TiO2 可见光 光电催化 

分 类 号：X703.1[环境科学与工程—环境工程]