采用多孔树脂和钛酸四丁酯为起始物制备出碳掺杂的纳米TiO2 (RN700A550). 该材料的SEM和比表面积测定表明, RN700A550 具有与P25类似的高分散性,这归于多孔树脂的存在强烈限制了纳米粒子的团聚. 另外,多孔树脂的使用还造成了样品的碳掺杂(大约1.0%). 罗丹明B的光降解实验表明, RN700A550 不仅在可见光而且在紫外光激发条件下都显示了比P25更高的光催化活性.
参考文献
[1] | Fujishima A;Honda K .[J].Nature,1972,238(5358):37. |
[2] | Levinson R;Berdahl P;Akbari H .Solar spectral optical properties of pigments - Part I: model for deriving scattering and absorption coefficients from transmittance and reflectance measurements[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2005(4):319-349. |
[3] | 陈恩伟,银董红,宋慧娟,龚黎明,喻宁亚.镧系离子掺杂TiO2的制备及其对咪唑降解反应的光催化活性[J].催化学报,2006(04):344-348. |
[4] | Zhang J;Xu Q;Feng Zh Ch;Li M J,Li C .[J].Angewandte Chemie International Edition,2008,47(09):1766. |
[5] | 黄翠英,张澜萃,李晓辉.稀土离子掺杂对纳米TiO2光催化制氢活性的影响[J].催化学报,2008(02):163-166. |
[6] | 董芳,杨冬梅,张敏,杨建军.TiO2晶型对Au/TiO2上光催化分解臭氧的影响[J].催化学报,2007(11):958-962. |
[7] | Lin L;Lin W;Zhu Y X;Zhao B Y Xie Y Ch He Y Zhu Y F .[J].Journal of Molecular Catalysis A:Chemical,2005,236(1-2):46. |
[8] | Wu QP;Li DZ;Hou YD;Wu L;Fu XZ;Wang XX .Study of relationship between surface transient photoconductivity and liquid-phase photocatalytic activity of titanium dioxide[J].Materials Chemistry and Physics,2007(1):53-59. |
[9] | Khan S U M;Al-Shahry M;Ingler W B Jr .[J].Science,2002,297(5590):2243. |
[10] | Li, D;Haneda, H;Hishita, S;Ohashi, N .Visible-light-driven N-F-codoped TiO2 photocatalysts. 2. Optical characterization, photocatalysis, and potential application to air purification[J].Chemistry of Materials,2005(10):2596-2602. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%