YFeO3/TiO2异质结材料的制备及其光催化性能研究

中国稀土学报, 2009, 27(2): 218-222.

YFeO3/TiO2异质结材料的制备及其光催化性能研究

吕晓萌 ^1, , 舒火明 ^2, , 刘军 ^3, , 吕平 ^4, , 丁建林 ^5, , 谢吉民 ^6,

1.江苏大学化学化工学院,江苏,镇江,212013

2.江苏大学化学化工学院,江苏,镇江,212013

3.江苏大学化学化工学院,江苏,镇江,212013

4.江苏大学化学化工学院,江苏,镇江,212013

5.江苏大学化学化工学院,江苏,镇江,212013

6.江苏大学化学化工学院,江苏,镇江,212013

基金项目: 中国博士后科学基金(20070420971)

关键词：异质结 , YFeO3/TiO2 , 光催化 , 稀土

Synthesis and Photocatalytic Performance of YFeO3/TiO2 Heterojunction Semiconductors

通过研磨-焙烧法制备了YFeO3/TiO2异质结材料,考察了焙烧温度和组分质量含量变化对合成异质结材料的影响;进行了X射线衍射(XRD)、傅里叶红外(FRIR)、紫外-可见漫反射(UV-vis/DRS)、光电子能谱(XPS)等表征并测试了不同样品光催化降解橙黄Ⅱ的活性.结果表明,YFeO3/TiO2复合氧化物不仅具有明显的可见光光响应,而且表现出比单组分相对较高的光催化降解活性.最佳的复合样品为600℃焙烧下,w(TiO2)=0.9的复合样品.复合材料光催化活性的提高可归因于p-YFeO3与n-TiO2间存在的p-n结.

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材料期刊网

YFeO3/TiO2异质结材料的制备及其光催化性能研究

Synthesis and Photocatalytic Performance of YFeO3/TiO2 Heterojunction Semiconductors

参考文献