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.
作者
刘蓉
戴恩华
朱柏伟
张军
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)
出处
《当代化工》
CAS
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)
关键词
分子印迹
TIO2
磁性粉煤灰
光催化
诺氟沙星
铝污泥
Molecular imprinting
TiO2
Magnetic fly ash
Photocatalysis
Norfloxacin
Aluminum sludge
