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Acta Chimica Sinica ›› 2009, Vol. 67 ›› Issue (5): 403-408. Previous Articles     Next Articles

Original Articles

纳米TiO2复合光催化剂的制备及其光解水制氢性能研究

万中全a 郑树楠b 贾春阳*,a 延 卫*,b

  

  1. (a电子科技大学 电子薄膜与集成器件国家重点实验室 成都 610054)
    (b西安交通大学 动力工程多相流国家重点实验室 西安 710049)

  • 投稿日期:2008-07-03 修回日期:2008-10-09 发布日期:2009-03-14
  • 通讯作者: 贾春阳

Preparation of Nano-TiO2 Composite Photocatalysts and Their Photocatalytic Performances for Hydrogen Production

Wan, Zhongquan a Zheng, Shunan b Jia, Chunyang *,a Yan, Wei *,b   

  1. (a State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054)
    (b State Key Laboratory of Multiphase Flow in Power Engineering, Xi′an Jiaotong University, Xi′an 710049)
  • Received:2008-07-03 Revised:2008-10-09 Published:2009-03-14
  • Contact: Jia, Chunyang

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p-MWNT-TiO2 and p-MWNT/ZnTPP-TiO2 composite photocatalysts were prepared by a sol-gel method, and their physical properties were characterized by thermogravimetric analysis (TG), transmission electron microscopy (TEM), X-ray powder diffraction (XRD) and ultraviolet visible diffuse reflectance spectrum (UV-Vis/DRS). The results indicate that the crystallization temperature of TiO2 has been delayed and the phase change restrained because carbon nanotubes have been doped into TiO2. Compared with pure TiO2, the absorptions of the composite photocatalysts were red-shifted obviously. The photocatalytic performance for hydrogen production is in an order of p-MWNT/ZnTPP-TiO2＞p-MWNT-TiO2＞P25＞TiO2.

Key words: sol-gel, titanium dioxide, photocatalyst, hydrogen, carbon nanotube, porphyrin