高等学校化学学报

高等学校化学学报

• 研究简报 • 上一篇    下一篇

碘掺杂对纳米TiO2催化剂光催化活性的影响

文晨, 孙柳, 张纪梅, 邓桦, 王鹏   

  1. 天津工业大学材料科学与化学工程学院, 天津 300160
  • 收稿日期:2006-02-09 修回日期:1900-01-01 出版日期:2006-12-10 发布日期:2006-12-10
  • 通讯作者: 文晨

Effect of Iodine-doping on Photocatalytic Activity of TiO2 Photocatalyst

WEN Chen, SUN Liu, ZHANG Ji-Mei, DENG Hua, WANG Peng   

  1. Institute of Material & Chemical Engineering, Tianjin Polytechnic University, Tianjin 300160, China
  • Received:2006-02-09 Revised:1900-01-01 Online:2006-12-10 Published:2006-12-10
  • Contact: WEN Chen

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摘要： 用溶胶-凝胶法制得了碘掺杂纳米TiO2催化剂, 考察了诸因素对相结构的影响, 这对深入揭示I-TiO2光催化降解有机物的本质具有重要意义.

关键词: 碘, 纳米二氧化钛催化剂, 掺杂, 光催化活性, 太阳光

Abstract: Iodine doped nanocrystalline TiO2 photocatalyst was prepared by sol-gel method. The results show that crystallinity of anatase was improved upon iodine doping, and iodine not only suppressed phase transition anatase to rutile, but also exhibited an absorption in the wave length range of 400—550 nm. The photocatalytic activity of I-doped TiO2 photocatalysts(500 ℃) exceeded that of pure TiO2 photocatalyst prepared by the same method when the molar ratio of HIO3 to Ti was kept in the range of 0.05—0.20.

Key words: Iodine, Nano-TiO2 photocatalyst, Doping, Photocatalytic activity, Sunlight

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