|
|||||
|
|
| TiO2/活性炭复合体的制备及其表征 | |
| 引用本文： | 李佑稷,李效东,李君文,尹静.TiO2/活性炭复合体的制备及其表征[J].材料科学与工艺,2005,13(5):537-539,543. |
| 作者姓名： | 李佑稷 李效东 李君文 尹静 |
| 作者单位： | 1. 吉首大学,化学化工学院,湖南,吉首,416000;国防科技大学,CFC国防科技重点实验室,湖南,长沙,410073;军事医学科学院,卫生学环境医学研究所,天津,300050 2. 国防科技大学,CFC国防科技重点实验室,湖南,长沙,410073 3. 军事医学科学院,卫生学环境医学研究所,天津,300050 |
| 摘 要： | 以活性炭(AC)为载体,采用溶胶-凝胶法制备纳米TiO2/AC复合型催化剂.利用SEM,TG-DTA,XRD,等手段对其组成、结构、尺寸等进行分析和表征,结果表明,该复合材料由碳、钛、氧等3种元素组成,其中TiO2纳米粒子尺寸在2O-50nm之间,比本体TiO2纳米粒子尺寸小;在该纳米复合材料中,活性炭作为载体与TiO2结合牢固,存在着某种化学键,TiO2纳米颗粒间不发生团聚,并且活性炭载体的比表面积变化不大. |
| 关 键 词： | TiO2/活性炭 溶胶-凝胶 复合体 光催化 |
| 文章编号： | 1005-0299（2005）05-0537-03 |
| 收稿时间： | 2004-02-16 |
| 修稿时间： | 2004-02-16 |
Preparation and characterization of TiO2 -coated active carbon composites |
|
| LI You-ji,LI Xiao-dong,LI Jun-wen,YIN Jing.Preparation and characterization of TiO2 -coated active carbon composites[J].Materials Science and Technology,2005,13(5):537-539,543. | |
| Authors: | LI You-ji LI Xiao-dong LI Jun-wen YIN Jing |
| Affiliation: | 1. College of Chemistry and Chemosynthesis, Jishou University,Jishou 416000,China; 2. CFC Key Lab, National University of Defence Technology,Changsha 410073, China; 3. Institute of Hygiene and Environmental Medicine, Academy of Military Medical Science, Tianjin 300050, China |
| Abstract: | Titanium dioxide-coated active cabon was prepared via sol-gel method by a carrier of active carbon,The as-prepared composites were characterized with regard to their components,structure,size by scanning electron microscopy(SEM),differential themal analyzer(TG-GTA) and X-ray diffraction(XRD).The results show that TiO_2/AC composites are mainly composed of C,O and Ti elements.The average nanometer size of TiO_2grains of composites is about 20_-50nm,which is smaller than that of TiO_2 grains.The chemical bond lies both active carbon and TiO_2,which are tight joint.surface area of active carbon,by which TiO_2 grains are not reunited,is slightly changed. |
| Keywords: | titanium dioxide -coated active carbon sol - gel composites photocatalyse |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
