制备方法对LaFeO_3及掺杂LaFeO_3光催化活性的影响  

Effect of Preparation Methods on Photocatalytic Activity of LaFeO_3 and Doped LaFeO_3

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

机构地区：[1]天津大学理学院,天津300072

出　　处：《化学工业与工程》2000年第6期336-340,共5页Chemical Industry and Engineering

基　　金：国家自然科学基金资助项目 !( 59772 0 19)

摘　　要：用XRD、TEM等分析技术对样品进行表征 ,研究了制备方法对钙钛矿型复合氧化物LaFeO3及具最佳掺杂比的La1-0 0 2 Ca0 .0 2 FeO3及LaFe1-0 .0 5 Cu0 .0 5 O3的光催化活性的影响 ,结果表明 ,用柠檬酸络合法制得的光催化活性最好 ,共沉淀法次之 ,研磨法最差。The effect of different preparation methods on the photocatalytic activity of perovskite type oxides(LaFeO 3 and doped LaFeO 3)has been studied by the analytical technology of XRD and TEM. The results show that the highest photocatalytic activity of the catalyst is prepared by the citrate complex method,the next is by the precipitation method and the worst is by the mixed oxide method.

关 键 词：制备 钙钛矿型 复合氧化物 光催化活性 LAFE03 

分 类 号：TQ462.7[化学工程—制药化工] O643.361[理学—物理化学]