| 用高温热水解法制备高活性TiO2纳米微晶光催化剂 |
| |
| 引用本文： | 赵文宽,方佑龄,董庆华,王怡中.用高温热水解法制备高活性TiO2纳米微晶光催化剂[J].物理化学学报,1998,14(5):424-428. |
| |
| 作者姓名： | 赵文宽 方佑龄 董庆华 王怡中 |
| |
| 作者单位： | Department of Chemistry,Wuhan University,Wuhan 430072,State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085 |
| |
| 基金项目： | 国家自然科学基金，环境水化学国家重点实验室开放基金 |
| |
| 摘 要： | 采用钛酸四西酯在有机溶剂中高温热水解与结晶同时进行的方法，制备了二氧化钛纳米微晶光催化剂．以XRD、BET、TEM、TG和DTA等方法对获得的微晶进行了表征．所制得的TiO2纳米微晶平均值径约为12nm，比表面积在100m2·g-1以上，并能在报宽的煅烧温度范围内保持锐钛矿型晶体结构．将它应用于光分解甲基橙，具有高的光催化活性．
|
| 关 键 词： | 二氧化钛 光催化剂 制备和表征 |
| 收稿时间： | 1997-08-01 |
| 修稿时间： | 1997-12-08 |
Preparation of High Photocatalytic Activity Nano-crystalline Titanium Dioxide by High Temperature Thermo-Hydrolysis Method |
| |
| Zhao Wenkuan ,Fang Youling, Dong Qinghua.Preparation of High Photocatalytic Activity Nano-crystalline Titanium Dioxide by High Temperature Thermo-Hydrolysis Method[J].Acta Physico-Chimica Sinica,1998,14(5):424-428. |
| |
| Authors: | Zhao Wenkuan Fang Youling Dong Qinghua |
| |
| Institution: | Department of Chemistry,Wuhan University,Wuhan 430072|State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085 |
| |
| Abstract: | Nano-crystalline titanium oxide(TiO2) was prepared by the high-temperature thermo-hydrolysis method and crystallized in organic media. Microcrystalline was characterized by TG-DTA, XRD, BET and TEM methods, the average diameter of this titanium dioxide is 12nm withthe surface area greater than 100m2.g-1, and the crystal is of anatase structure over a relativewide temperature range. The photocatalytic activity of this titanium oxide was determminated bymeasuring the rate of degradation of methyl orange and the rate of formation of degradation prod-uct. The results showed that this titanium oxide has much higher photocatalytic activity. |
| |
| Keywords: | Titanium dioxide Photocatalysts Preparation and characterization |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
|
