| 阴离子掺杂TiO2气相光催化降解正己烷的研究 |
| |
| 引用本文： | 蔡邦宏,邓兴毅,高滋.阴离子掺杂TiO2气相光催化降解正己烷的研究[J].兰州理工大学学报,2004,30(2):70-71. |
| |
| 作者姓名： | 蔡邦宏 邓兴毅 高滋 |
| |
| 作者单位： | 嘉应学院,化学系,广东,梅州,514015;复旦大学,分子催化与创新材料实验室,上海,200433;复旦大学,分子催化与创新材料实验室,上海,200433 |
| |
| 摘 要： | 利用钛酸丁酯水解浸渍方法制备了多种阴离子掺杂改性TiO2纳米催化剂并作了XRD,BET等表征,研究了它们对气相光催化降解正己烷反应的活性,并和阳离子K 掺杂TiO2、未掺杂TiO2及市售TiO2DegussaP 25作了比较.结果表明,在适当的掺杂浓度下,多数阴离子的掺杂对TiO2的光催化活性略有降低,但仍优于P 25,活性最差的是钾离子掺杂TiO2,H3PO4和NH4H2PO4的掺杂则对TiO2的光催化活性有明显的促进作用.
|
| 关 键 词： | TiO2 光催化 阴离子 掺杂 正己烷 |
| 文章编号： | 1000-5889(2004)02-0070-02 |
| 修稿时间： | 2003年3月1日 |
Gas-phase photocatalytic degradation of n-hexane with negative ion-doped TiO2 |
| |
| CAI Bang-hong.Gas-phase photocatalytic degradation of n-hexane with negative ion-doped TiO2[J].Journal of Lanzhou University of Technology,2004,30(2):70-71. |
| |
| Authors: | CAI Bang-hong |
| |
| Institution: | CAI Bang-hong~ |
| |
| Abstract: | The nanosized powder of negative ion-doped TiO_2 is prepared by impregnation with the precursor of tetra-n-butyl titanate, and characterized by XRD and BET. The photocatalytic activities of these doped TiO_2 are investigated for gas-phase degradation of n-hexane under 365 nm UV light, and compared with potassium-doped TiO_2, pure TiO_2, and commercial TiO_2 Degussa P-25. The results show that most negative ion-doping is somewhat detrimental to photocatalytic activity of TiO_2,but the catalytic activity is still better than that of P-25,and much better than that of K-doped TiO_2. It is also shown that doping with NH_4H_2PO_4 or H_3PO_4 can improve the efficiency of TiO_2 activity distinctly. |
| |
| Keywords: | titania photocatalysis negative ion doping n-hexane |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
