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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (14): 1325-1332. 上一篇    下一篇

研究论文

杂多蓝在可见光照射下对TiO2的光敏作用研究

付宁1,2, 吕功煊*,1   

  1. (1中国科学院兰州化学物理研究所 羰基合成与选择氧化国家重点实验室 兰州 730000)
    (2中国科学院研究生院 北京 100049)
  • 投稿日期:2006-07-28 修回日期:2007-01-25 发布日期:2007-07-28
  • 通讯作者: 吕功煊

Photosensitization of Heteropoly Blue for TiO2 under Visible Light Irradiation

FU Ning1,2; LÜ Gong-Xuan*,1   

  1. (1 State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000)
    (2 Graduate University of Chinese Academy of Sciences, Beijing 100049)
  • Received:2006-07-28 Revised:2007-01-25 Published:2007-07-28
  • Contact: LÜ Gong-Xuan

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利用磷钨酸、硅钨酸经光还原后制得的杂多蓝对Pt/TiO2进行了光敏化. 所制备的催化剂在可见光区对光催化还原水产氢反应具有较高活性. 当以丙三醇为电子给体时, 该催化剂在可见光区(650～700 nm)制氢反应的表观量子效率最高可达3.4%.

关键词: 杂多蓝, 可见光, 光敏化, 二氧化钛

Heteropoly acid such as phosphotungstic acid or silicotungstic acid was photoreduced to heteropoly blue in glycerol aqueous solution. Sensitization of Pt/TiO2 by the heteropoly blue was found to be active for hydrogen generation under visible light irradiation. The apparent quantum yield of 3.4% for the photocatalytic hydrogen generation has been achieved with glycerol as an electron donor under 650～700 nm visible light.

Key words: heteropoly bule, visible light, photosensitization, titania