高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (2): 283.

• 研究论文 • 上一篇    下一篇

钙钛矿型LaFe1-xCuxO3的光催化活性研究

傅希贤, 杨秋华, 桑丽霞   

  1. 天津大学理学院, 天津 300072
  • 收稿日期:2001-02-27 出版日期:2002-02-24 发布日期:2002-02-24
  • 通讯作者: 傅希贤(1943年生),女,教授,主要从事光催化材料的研究.E-mail:chem@tju.edu.cn E-mail:chem@tju.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:59772019)资助

Studies on Photocatalytic Activity of Perovskite Type LaFe1-x CuxO3

FU Xi-Xian, YANG Qiu-Hua, SANG Li-Xia   

  1. School of Science, Tianjin University, Tianjin 300072, China
  • Received:2001-02-27 Online:2002-02-24 Published:2002-02-24

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摘要： 用柠檬酸络合法制备了钙钛矿型LaFeO3及LaFe1-xCuxO3化合物,测定了其对酸性红3B等水溶性染料的光催化降解活性.利用红外、紫外和光声光谱、正电子寿命谱及光电子能谱等技术分析了LaFeO3的光催化性能及掺杂对其活性的影响.结果表明,掺杂Cu2+可使LaFeO3的光催化活性明显提高.

关键词: LaFe1-xCuxO3, 光催化降解活性, 掺杂

Abstract: LaFeO3 and a series of Cu-doped compounds LaFe1-x CuxO3 were prepared by citrate method. The photodegradation experiments of various water soluble dyes were carried out in the suspension of LaFe1-x CuxO3 acting as the photocatalysts. The photocatalytic activity of LaFeO3 and LaFe1-x CuxO3 was studied with IR, UV-Vis, and photoacoustic spectroscopy. The influence of doping on photocatalytic activity was also analyzed by PATand XPStechnology. The results show that the doping can greatly improve the photocatalytic activity of LaFeO3.

Key words: LaFe1-x CuxO3, Photocatalytic activity, Doping

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