|
|||||
|
|
| 有机改性TiO2光催化剂的制备及可见光催化性能 | |
| 引用本文： | 姜东,徐耀,侯博,吴东,孙予罕. 有机改性TiO2光催化剂的制备及可见光催化性能[J]. 化学学报, 2007, 65(14): 1289-1293 |
| 作者姓名： | 姜东 徐耀 侯博 吴东 孙予罕 |
| 作者单位： | 1. 中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原,030001;中国科学院研究生院,北京,100049 2. 中国科学院山西煤炭化学研究所炭材料重点实验室,太原,030001 3. 中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原,030001 |
| 摘 要： | 以染料黄叱精(Chrysoidine G)和TiO2 (Degussa P25)为原料, 利用甲苯二异氰酸酯为桥连体, 成功合成了一种有机改性的TiO2光催化剂. 采用XRD, TEM, FT-IR, UV-Vis对所得催化剂进行了表征, 以亚甲基蓝降解为探针反应, 考察其可见光催化性能. 结果表明: 甲苯二异氰酸酯在黄叱精和TiO2之间形成了稳定的化学键, 从而实现了对TiO2的表面有机改性; 改性后的TiO2在可见光区(400～550 nm)有明显的吸收; 与未改性TiO2相比, 有机改性的TiO2催化剂在可见光照射下表现出了很好的光催化性能. |
| 关 键 词： | TiO2 有机改性 可见光催化 制备 |
| 收稿时间： | 2006-12-15 |
| 修稿时间： | 2006-12-152007-06-03 |
Synthesis of Organically Hybridized TiO2 Photocatalyst and Its Photocatalytic Activity under Visible Light Irradiation |
|
| JIANG Dong,XU Yao,HOU Bo,WU Dong,SUN Yu-Han. Synthesis of Organically Hybridized TiO2 Photocatalyst and Its Photocatalytic Activity under Visible Light Irradiation[J]. Acta Chimica Sinica, 2007, 65(14): 1289-1293 | |
| Authors: | JIANG Dong XU Yao HOU Bo WU Dong SUN Yu-Han |
| Affiliation: | 1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001;2. Graduate School of the Chinese Academy of Sciences, Beijing 100049;3. Key Laboratory of Carbon Material, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 |
| Abstract: | An organically hybridized TiO2 photocatalyst was successfully synthesized using a dye chrysoidine G, tolylene-2,4-diisocyanate and Degussa P25 as starting materials. Tolylene-2,4-diisocyanate was used as a connecter, and one —NCO reacted with Ti—OH and the other with the dye. The as-prepared catalyst was characterized by XRD, TEM, IR and UV-visible and its photocatalytic activity was evaluated by the degradation of methylene blue under visible light. The results showed that stable chemical bonds were formed through the above-mentioned reaction and an organically hybridized photocatalyst was prepared. The obtained catalyst showed an obvious absorption in visible region (400～550 nm). Compared with unmodified TiO2, the organically hydridized TiO2 exhibited largely enhanced activity for photocatalytic degradation of methylene blue under visible light irradiation. |
| Keywords: | TiO2 organically hybridized visible photocatalysis preparation |
| 本文献已被 维普 万方数据 等数据库收录！ | |
| 点击此处可从《化学学报》浏览原始摘要信息 | |
| 点击此处可从《化学学报》下载全文 | |