分子印迹TiO2/AS、TiO2/MCFA、TiO2/AS/MCFA的光催化性能研究  

Photocatalytic Performance of Molecularly Imprinted TiO/AS, TiO/MCFA and TiO/MCFA/AS

作　　者：刘蓉 戴恩华 朱柏伟 张军[1,2] LIU Rong;DAI En-hua;ZHU Bo-wei;ZHANG Jun(College of Geography and Environment,Baoji University of Arts and Science,Baoji 721013,China;Shanxi Provincial Key Laboratory of Disaster Monitoring and Mechanism Simulation,BaoJi University of Arts and Science,Baoji 721013,China)

机构地区：[1]宝鸡文理学院地理与环境学院,宝鸡721013 [2]宝鸡文理学院陕西省灾害监测与机理模拟重点实验室,宝鸡721013

出　　处：《当代化工》2020年第9期1851-1854,共4页Contemporary Chemical Industry

基　　金：旱区地下水文与生态效应教育部重点实验室(长安大学)开放基金资助(项目编号:300102290504);宝鸡文理学院2018年陕西省大学生创新创业项目(项目编号:201827045)

摘　　要：以净水厂废弃物铝污泥(AS)、火力发电厂废弃物粉煤灰中提取磁性粉煤灰(MFAC)及铝污泥包裹磁性粉煤灰(MCFA/AS)为载体,钛酸丁酯为钛源,诺氟沙星为模板分子,采用溶胶-凝胶法分别制备了分子印迹TiO2/AS、分子印迹TiO2/MCFA与分子印迹TiO2/MCFA/AS 3种光催化材料(MIP-TiO2/AS、MIP-TiO2/MCFA、MIP-TiO2/AS/MCFA),并探究不同光催化材料对诺氟沙星的光催化降解性能。结果表明:MIP-TiO2/MCFA/AS对水中诺氟沙星光催化性能更高,经150min紫外光照后对质量浓度为4mg·L-1的诺氟沙星溶液的降解率为71.9%;MIP-TiO2/MCFA/AS对诺氟沙星有选择识别性,比NIP-TiO2/MCFA/AS的降解率提高了5.7%。Molecule-imprinted TiO2/AS,molecule-imprinted TiO2/MCFA and molecule-imprinted TiO2/MCFA/AS photocatalytic materials(MIP-TiO2/AS,MIP-TiO2/MCFA,MIP-TiO2/AS/MCFA)were prepared by sol-gel method with waste aluminum sludge of water purification plant(AS),magnetic fly ash(MCFA)extracted from thermal power plant waste fly ash and magnetic fly ash wrapped by aluminum sludge(MCFA/AS)as carriers,butyl titanate as titanium source,and norfloxacin as template molecule.The photocatalytic degradation of norfloxacin by different photocatalytic materials was investigated.The results showed that MIP-TiO2/AS/MCFA had better photocatalytic performance on norfloxacin in water,and the degradation rate of norfloxacin solution with concentration of 4 mg·L-1 was 71.9%after 150 min in ultraviolet light.MIP-TiO2/AS/MCFA had selective recognition of norfloxacin,and the degradation rate was 5.7%higher than that of NIP-TiO2/MCFA/AS.

关 键 词：分子印迹 TIO2 磁性粉煤灰 光催化 诺氟沙星 铝污泥 

分 类 号：O643.36[理学—物理化学] X703[理学—化学]