玻璃负载纳米TiO_2/SiO_2膜的制备和光催化性能  

Preparation and photocatalytic capacity of glass-loaded nanometre TiO_2/SiO_2 film

作　　者：李建生[1] 刘炳光[1] 王少杰[1] 董学通 

机构地区：[1]天津职业大学生物与环境工程学院,天津300410 [2]天津泰岳玻璃有限公司,天津300410

出　　处：《工业水处理》2016年第5期60-63,共4页Industrial Water Treatment

基　　金：天津市科技特派员项目(14JCTPJC00533)

摘　　要：制备了玻璃负载纳米TiO2/SiO2光催化膜,以甲基橙溶液作为模拟废水研究了其光催化性能,分别考察了光催化膜中m（Ti O2）∶m（SiO2）、膜厚度、使用次数和中试扩大以及再生方式对甲基橙模拟废水降解率的影响。试验结果表明,在太阳光下照射4 h,厚度为200-400nm的光催化膜对10mg/L的甲基橙模拟废水降解率为84%,失活的光催化膜可用模拟风、光、酸雨和人工清洗方式再生。纳米TiO2/SiO2光催化膜可应用于光催化水处理设备、建筑易清洁玻璃和太阳电池玻璃。The glass-loaded Nano-TiO2/SiO2 photocatalytic film has been prepared. Its photo-catalytic capacity is studied with methyl orange solution as simulated wastewater. The influences of the mass ratio of TiO2 to SiO2 in the film,thickness of the film,serving times,pilot scale extension and regenerating modes on the degrading rate of stimulated methyl orange wastewater are investigated,respectively. The experimental results show that under sunlight irradiation for 4 h,the degrading rate of the 10mg/L of methyl organic simulated wastewater by the photo-catalytic film with a thickness of 200-400 nm is 84%. The deactivate film could be regenerated by simulated wind,sunlight,acidic rain or manual cleaning. Nanometre TiO2/SiO2 film can be applied to photocatalytic water treatment equipment,self-cleaning glass on buildings and solar cell glass.

关 键 词：纳米TIO2 TiO2/SiO2膜 光催化 

分 类 号：X703.1[环境科学与工程—环境工程]