| 具有可见光响应的C、N共掺杂TiO2纳米管光催化剂的制备 |
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| 引用本文： | 石健,李军,蔡云法. 具有可见光响应的C、N共掺杂TiO2纳米管光催化剂的制备[J]. 物理化学学报, 2008, 24(7): 1283-1286. DOI: 10.3866/PKU.WHXB20080727 |
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| 作者姓名： | 石健 李军 蔡云法 |
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| 作者单位： | 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 |
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| 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.
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| 关 键 词： | 光催化 可见光 二氧化钛 共掺杂 |
| 收稿时间： | 2007-12-18 |
| 修稿时间： | 2008-02-11 |
Fabrication of C,N-Codoped TiO2 Nanotube Photocatalysts with Visible Light Response |
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| SHI Jian,LI Jun,CAI Yun-Fa. Fabrication of C,N-Codoped TiO2 Nanotube Photocatalysts with Visible Light Response[J]. Acta Physico-Chimica Sinica, 2008, 24(7): 1283-1286. DOI: 10.3866/PKU.WHXB20080727 |
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| Authors: | SHI Jian LI Jun CAI Yun-Fa |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | Photocatalysis Visible light Titania Codoping |
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