氮掺杂二氧化钛复合陶瓷膜处理罗丹明染料废水  

Treatment of rhodamine dye wastewater by the composite ceramic membrane with the N-doped TiO_2

作　　者：尚毅林 管玉江[2] 陈彬[1] 王子波[1] 

机构地区：[1]扬州大学环境科学与工程学院,江苏扬州225127 [2]台州学院环境工程系,浙江台州318001

出　　处：《扬州大学学报（自然科学版）》2015年第3期74-78,共5页Journal of Yangzhou University：Natural Science Edition

基　　金：浙江省公益性技术应用研究项目(2011C31031)

摘　　要：首先以Al2O3陶瓷膜为支撑体,采用聚合溶胶法制备氮掺杂的二氧化钛光催化复合陶瓷膜(N-Ti O2/Si O2/Al2O3);然后运用扫描电镜(SEM)和X射线衍射(XRD)对合成的复合膜进行结构表征,膜表面平均孔直径为2 nm;最后通过该复合陶瓷膜处理罗丹明染料废水的实例考察其分离性能.结果表明,该复合陶瓷膜对罗丹明染料的截留率可达99%,膜通量达3.42 L·m-2·h-1,能够实现罗丹明染料废水的分离与浓缩.N-doped TiO2 supported on the surface of the Al2O3 photocatalytic ceramic composite membrane is synthesized by sol-gel method,and the membranes are characterized by scanning electron microscope（SEM）and X-ray diffraction（XRD）.SEM images reveal that the composite membranes with the average pore size of 2nm are successfully obtained.The composite membranes are used to treat rhodamine dye wastewater,and the separation properties of the composite membranes are analysed.The results show that the retention rate with 99%for the membranes to rhodamine dye can be obtained and the membrane flux can reach 3.42L·m^-2·h^-1.The separation of rhodamine from dye wastewater can be achieved.

关 键 词：复合陶瓷膜 膜分离 罗丹明染料 废水 

分 类 号：X788[环境科学与工程—环境工程] X703.1