A novel photocatalyst and improvement of photocatalytic properties by Cu doping

作者：Sun Jingxue; Chen Gang^*; Li Yingxuan; Zhou Chao; Zhang Hongjie

来源：Journal of Alloys and Compounds, 2011, 509(4): 1133-1137.

DOI：10.1016/j.jallcom.2010.09.138

• Semiconductors
• X-ray diffraction
• Scanning electron microscopy

A new series of photocatalysts Bi(2)Zn(2/3-x)Cu(x)Ta(4/3)O(7)(Cu-beta-BZT) crystals with pyrochlore structure were synthesized by the method of solid-state reaction (SSR) With small amount of Cu doped (0 01 <= x <= 0 04) the phase structure was kept to be monoclinic pyrochlore as pure beta-BZT The diffuse reflectance spectrum of Cu-beta-BZT samples showed a red shift The method of Cu doping enhanced the photocatalytic activity and when the value of x is 0 03 the sample showed the highest activity which is about 10 times higher than that of pure beta-BZT under UV light Especially the samples of Cu-beta-BZT showed photocatalytic

• 出版日期2011-1-28
• 单位哈尔滨工业大学