Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (1): 5-10. Previous Articles     Next Articles

Original Articles



  1. (山东大学 1化学与化工学院 2晶体材料国家重点实验室 济南 250100)
  • 投稿日期:2004-03-03 修回日期:2004-09-22 发布日期:2010-12-10
  • 通讯作者: 许效红

Photocatalytic Properties of Bismuth Titanate Compounds

XU Xiao-Hong*1, YAO Wei-Feng2, ZHANG Yin2, ZHOU Ai-Qiu1, HOU Yun2, WANG Min2   

  1. (1 School of Chemistry and Chemical Engineering, 2 State Key Laboratory of Crystal Materials,
    Shangdong University, Jinan 250100)
  • Received:2004-03-03 Revised:2004-09-22 Published:2010-12-10
  • Contact: XU Xiao-Hong

Bismuth titanate photocatalysts (Bi12TiO20, Bi4Ti3O12, and Bi2Ti2O7) were prepared by a chemical solution decomposition method (CSD) and structurally characterized by powder X-ray diffraction. TEM was used to examine the morphology and size of photocatalyst particles, which revealed that the average particle size is bigger than 100 nm. UV-Vis diffuse reflectance spectra were measured and intense photoabsortption in visible light region was observed for all the bismuth titanate samples. Photocatalytic activities during the photodecolourization of methyl orange under UV irradiation showed that all the bismuth titanate compounds acted as semiconductor photocatalyst, and Bi12TiO20 showed the highest photocatalytic activity comparable to that of P-25.

Key words: Bi12TiO20, Bi4Ti3O12, Bi2Ti2O7, bismuth titanate, photocatalysis