Photocatalytic Properties of Bismuth Titanate Compounds

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

Original Articles

钛酸铋系化合物的光催化性能研究

许效红*¹，姚伟峰²，张寅²，周爱秋¹，侯云²，王民²

(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

(¹School of Chemistry and Chemical Engineering, ²State 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

Abstract

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

Cite this article

XU Xiao-Hong*¹, YAO Wei-Feng², ZHANG Yin², ZHOU Ai-Qiu, HOU Yun², WANG Min². Photocatalytic Properties of Bismuth Titanate Compounds[J]. Acta Chimica Sinica, 2005, 63(1): 5-10.

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钛酸铋系化合物的光催化性能研究

Photocatalytic Properties of Bismuth Titanate Compounds

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