电场辅助TiO_2薄膜光催化降解甲基橙的影响  

Study on Photocatalytic Degradation of Methyl Orange by Titanium Dioxide Coupling with Photocatalytic Field

作　　者：尹荔松[1] 范海陆[1] 陈永平[1] 谭敏[1] 杨硕[1] 

机构地区：[1]中南大学物理科学与技术学院,长沙410083

出　　处：《电子器件》2007年第6期2001-2003,共3页Chinese Journal of Electron Devices

基　　金：中国博士后基金资助(20060390878);湖南省博士后基金资助

摘　　要：将电场引入到TiO2光催化降解甲基橙反应中,实验讨论了电场对TiO2光催化活性的影响及电场对薄膜最佳光催化活性层数的影响.结果表明:外加电场对光催化反应的影响明显,在外加电压30V时,TiO2光催化降解甲基橙的降解率提高了50%;此外,电场对催化剂TiO的最佳光催化活性层数有一定的影响,最佳光催化活性层数从无电场时的6层变为7层.The photocatalytic degradation of methyl orange under UV-ray and electric field with titanium dioxide thin films was investigated in this work.The electric field effects on the photocatalytic properties of TiO2 nanometer films and the best ac-tive lays of TiO2 were discussed respectively. The experimental results indicate that,the degradation efficiency of methyl orange can be greatly increased by applying the electric field, the growth rate reaches 50 % when the 30 voltage acting on the catalyst.The electr...

关 键 词：TIO2 光催化降解 电场 甲基橙 

分 类 号：X791[环境科学与工程—环境工程]