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| 炭与TiO2光催化剂的复合及协同作用研究进展 | |
| 引用本文： | 黄正宏,许德平,康飞宇,郝吉明. 炭与TiO2光催化剂的复合及协同作用研究进展[J]. 新型炭材料, 2004, 19(3): 229-238 |
| 作者姓名： | 黄正宏 许德平 康飞宇 郝吉明 |
| 作者单位： | 1. 清华大学,材料科学与工程系,北京,100084 2. 中国矿大北京校区,化学与环境工程学院,北京,100083 3. 清华大学,环境科学与工程系,北京,100084 |
| 基金项目： | 国家863项目(2002AA649060) ~~ |
| 摘 要： | 通过论述炭与TiO2光催化剂的复合方式，系统总结了复合光催化剂的各种制备方法，指出炭与TiO2的复合呈现多样化的特征，炭不仅作为载体，还可以用作涂层、造孔剂以及助剂。同时，炭在复合体中也展现出多方面的作用，不仅可以富集目标污染物，捕获中间产物，还可以抑制水蒸气和其他组分对光催化降解的影响，并且可以抑制热处理时TiO2相变和晶粒长大。可见，炭与TiO2光催化剂的复合将为推动光催化技术的实用化产生积极影响。 |
| 关 键 词： | TiO2光催化剂 复合光催化剂 造孔剂 助剂 组分 制备方法 中间产物 研究进展 抑制 协同作用 |
| 文章编号： | 1007-8827(2004)03-0229-10 |
| 修稿时间： | 2004-06-04 |
Recent developments in the preparation and of a C/TiO2 composite photocatalyst |
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| HUANG Zheng-hong,XU De-ping,KANG Fei-yu,HAO Ji-ming. Recent developments in the preparation and of a C/TiO2 composite photocatalyst[J]. New Carbon Materials, 2004, 19(3): 229-238 | |
| Authors: | HUANG Zheng-hong XU De-ping KANG Fei-yu HAO Ji-ming |
| Affiliation: | HUANG Zheng-hong~1,XU De-ping~2,KANG Fei-yu~1,HAO Ji-ming~3 |
| Abstract: | The preparation methods of carbon/TiO_2 composite photocatalysts are reviewed. It is pointed out that composites exhibit a diversity of characteristics: carbon is not only used as a support but a coating, pore-forming agent and assisting additive. Correspondingly, carbon in the composite has the effect of concentrating the targeted pollutant and capturing intermediate products, besides which it can reduce the competitive action of water vapor with other pollutants on TiO_2, which is favorable to photodegradation. In addition, it has an advantage of suppressing the phase transformation from anatase to rutile and of preventing sintering and crystal growth in TiO_2 particles at high temperatures. Therefore, it has a beneficial effect on the practical application of photocatalysis technology for carbon/TiO_2 composite photocatalysts. |
| Keywords: | Carbon Titanium dioxide (TiO_2) Composite photocatalysts Synergistic effect |
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