物理化学学报 >> 2008, Vol. 24 >> Issue (07): 1283-1286.doi: 10.3866/PKU.WHXB20080727

研究论文 上一篇    下一篇

具有可见光响应的C、N共掺杂TiO2纳米管光催化剂的制备

石健; 李军; 蔡云法   

  1. 南通大学化学与化工学院, 江苏 南通 226007; 浙江大学环境工程研究所, 杭州 310027
  • 收稿日期:2007-12-18 修回日期:2008-02-11 发布日期:2008-07-04
  • 通讯作者: 石健 E-mail:shijianjs66@163.com

Fabrication of C, N-Codoped TiO2 Nanotube Photocatalysts with Visible Light Response

SHI Jian; LI Jun; CAI Yun-Fa   

  1. School of Chemistry and Chemical Engineering, Nantong University, Nantong 226007, Jiangsu Province, P. R. China; Institute of Environmental Engineering, Zhejiang University, Hangzhou 310027, P. R. China
  • Received:2007-12-18 Revised:2008-02-11 Published:2008-07-04
  • Contact: SHI Jian E-mail:shijianjs66@163.com

摘要: 为了提高二氧化钛对可见光的利用效率, 采用等离子体电解方法对二氧化钛实现了C、N共掺杂. 掺杂通过等离子体电解HCONH2、NaNO2、(NH2)2CO产生活性N、C实现. XPS结果表明, C、N掺杂进入了氧化钛晶格. 紫外漫反射光谱分析表明, 氧化钛对可见光(>400 nm)的响应增强, 其光催化降解能力也大大增强. C、N共掺杂TiO2是一种利用太阳能的理想的光催化剂.

关键词: 光催化, 可见光, 二氧化钛, 共掺杂

Abstract: To enhance the absorption in the visible region for TiO2, C and/or N doping of TiO2 nanotube was carried out by a novel method——plasma electrolysis. The doping was achieved with active C and Nproduced fromthe plasma electrolysis of HCONH2, NaNO2, or (NH2)2CO. The results of XPS revealed that C and N were successfully doped into the lattice of TiO2. UV-Vis diffuse reflectance spectra showed a shift to longer wavelengths and an enhancement of the absorption in the visible region (>400 nm) for the C, N-codoped TiO2, compared to the pure TiO2, C-doped TiO2 and N-doped TiO2. The C, N-codoped TiO2 showed the best photocatalytic activities for the degradation of methyl orange under visible light irradiation, and was a promising photocatalyst for utilizing the solar energy.

Key words: Photocatalysis, Visible light, Titania, Codoping

MSC2000: 

  • O644