高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (6): 958.

• 研究简报 • 上一篇    下一篇

掺杂过渡金属离子的TiO2复合纳米粒子光催化剂──罗丹明B的光催化降解

王艳芹, 张莉, 程虎民, 马季铭   

  1. 北京大学化学与分子工程学院, 北京 100871
  • 收稿日期:1999-06-07 出版日期:2000-06-24 发布日期:2000-06-24
  • 通讯作者: 程虎民(1938年出生),男,教授,主要从事纳米材料研究.E-mail:majm@chemm s.chem.pku.edu.cn E-mail:majm@chemm s.chem.pku.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:29673003);国家教育部博士点专项基金

The Photocatalytic Properties of Transition Metal Ion doped TiO2 Nanoparticles ——Photocatalytic Degradation of Rhodamine B

WANG Yan-Qin, ZHANG Li, CHENG Hu-Min, MA Ji-Ming   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  • Received:1999-06-07 Online:2000-06-24 Published:2000-06-24

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关键词: TiO2复合纳米粒子, 光催化降解, 罗丹明B

Abstract: The transition metal ion-doped TiO2 nanoparticles were prepared with hydrothermal method, and the effects of doping different metal ions on the ability of TiO2 in photocatalyzing degradation of rhodamine B(RB) were studied. The results showed that the doping of Fe 3+ , Co2+ , Ni2+ and Cr3+ in TiO2 nanoparticles made the photocatalytic efficiency of the TiO2 particles reduce and the higher the initial content of Fe3+ , the lower the ability of TiO2 in photocatalyzing the degradation of RB. But the doping of Zn2+ and Cd 2+ , especially Zn2+ , made the photocatalytic efficiency of the TiO2 particles enhance, showing a great increase of the rate constant(k) and the initial reaction rate(rini).

Key words: TiO2 composite nanoparticles, Photocatalystic degradation, Rhodamine B

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