钙钛矿型LaFeO_3和SrFeO_3的光催化性能  

Photocatalytic Activity of Pervoskite-Type LaFeO_3 and SrFeO_3

作　　者：杨秋华[1] 傅希贤[1] 桑丽霞[1] 孙艺环[1] 王俊珍[1] 

机构地区：[1]天津大学化学系,天津300072

出　　处：《硅酸盐通报》2003年第3期15-18,共4页Bulletin of the Chinese Ceramic Society

摘　　要：采用柠檬酸法合成钙钛矿型复合氧化物LaFeO3 和SrFeO3 ,并以其为光催化剂对不同水溶性染料进行光催化降解实验。结果表明 :SrFeO3 的光催化活性明显高于LaFeO3 ,这与A位离子 (La3 + ,Sr2 + )的电子构型的不同有关。Pervoskite-type LaFeO 3 amd SrFeO 3 were prepared by citrate method,Using afluorescent Hg lamp as irradiator,the degradation experiments of various water-soluble dyes were carried out in the suspension systems of LaFeO 3 and SrFeO 3.The results show that the pervoskite-type LaFeO 3 and SrFeO 3 have photocatalytic activities,but the catalytic activity of SrFeO 3 is higher than that of LaFeO 3 The difference of photocatalytic activities is related to the electronic structure of the ion A(La 3+ ,Sr 2+ )

关 键 词：钙钛矿型 复合氧化物 LAFEO3 SrFeO3 光催化性能 柠檬酸法 

分 类 号：TQ123.4[化学工程—无机化工]