陶瓷介孔膜耦合光催化处理黄连素废水  

TREATMENT OF BERBERINE WASTEWATER BY THE CERAMIC MESOPOROUS MEMBRANE WITH PHOTOCATALYSIS

作　　者：管玉江[1] 陈彬[2] 王子波[2] 蒋胜韬[1] 白书立[1] 

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

出　　处：《水处理技术》2015年第3期28-32,共5页Technology of Water Treatment

基　　金：浙江省公益性技术应用研究项目(2011C31031)

摘　　要：采用聚合溶胶法制备N掺杂Ti O2溶胶及Si O2溶胶,以Al2O3陶瓷膜为支撑体,用浸渍-提拉方法将溶胶涂敷在支撑体表面,合成平均孔径为3~5 nm的N-Ti O2-Si O2/Al2O3复合膜,采用扫描电镜（SEM）及X射线能谱（EDX）对其表征分析;用复合膜处理黄连素废水,考察复合膜的分离及光催化性能。结果表明,复合膜对黄连素截留率达90%,无机盐截留率低于5%。该复合膜能实现有机物和盐分离、浓缩。Nitrogen-doped TiO2 and SiO2 sol was coated onto ceramic membranes （Al2O3） by the sol-gel method, and composite membrane with a selective layer having average pore sizes of 3-5 nm was prepared. The composite membranes were characterized by scanning electron microscope （SEM） and energy dispersion X-Ray （EDX）. SEM images revealed that the TiO2 particles piled up on ceramic membranes to form separation layer. Berberine wastewater was treated by the as-prepared composite membranes, and properties of separation as well as photocatalysis of the composite membranes had been analyzed. The results showed that the retention rate ofberberine reached 90% while only 5% of inorganic salt or less was rejected. Separation and concentration of organics from salt solution could be achieved by this composite membrane.

关 键 词：光催化 陶瓷膜 黄连素废水 

分 类 号：TQ028.8[化学工程]