物理化学学报 >> 2003, Vol. 19 >> Issue (10): 967-969.doi: 10.3866/PKU.WHXB20031017

研究简报 上一篇    下一篇

掺铜二氧化钛光催化剂的XPS研究

吴树新;马智;秦永宁;何菲;贾立山;张彦军   

  1. 天津大学化工学院; 南开大学-天津大学联合研究院 ;
  • 收稿日期:2003-03-24 修回日期:2003-05-30 发布日期:2003-10-15
  • 通讯作者: 秦永宁 E-mail:qin-yongning@263.net

XPS Study of Copper Doping TiO2 Photocatalyst

Wu Shu-Xin;Ma Zhi;Qin Yong-Ning;He Fei;Jia Li-Shan;Zhang Yan-Jun   

  1. School of Chemical Engineering and Technology,Tianjin University; United Institute of Nankai University and Tianjin University; State Key Laboratory of C1 Chemical Technology of Tianjin University, Tianjin 300072
  • Received:2003-03-24 Revised:2003-05-30 Published:2003-10-15
  • Contact: Qin Yong-Ning E-mail:qin-yongning@263.net

摘要: 利用浸渍法制备了铜掺杂的二氧化钛,以乙酸为模型物研究了催化剂的光催化活性,利用XPS结果对改性后的催化剂进行了分析.结果表明,改性后的催化剂表面吸附氧的提高和Cu+/Cu2+的共存有利于光生载流子的分离和界面电子转移,因而改善了催化剂的光催化性能.

关键词: 光催化氧化, 乙酸, 铜掺杂, 二氧化钛, XPS

Abstract: The copper doped titanium dioxide was prepared by immersion method. Photocatalytic activity was investigated with acetic acid as a model reactant, and the photocatalyst was analyzed by means of XPS. The enhanced degradation rate of acetic acid is attributed to increased charge separation and interfacial charge-transfer rate on the surface of the doped photocatalyst.

Key words: Photocatalytic oxidation, Acetic acid, Copper ion doping, Titanium dioxide, XPS