| 单分散TiO_2空心微球的制备及表征 |
| |
| 引用本文： | 姚海波,韩国君.单分散TiO_2空心微球的制备及表征[J].电子显微学报,2014(2):101-107. |
| |
| 作者姓名： | 姚海波 韩国君 |
| |
| 作者单位： | 滨州学院化学工程系,山东滨州256603 |
| |
| 基金项目： | 服务滨州科学发展项目（BZXYFB20130701）. |
| |
| 摘 要： | 本文介绍一种简单可行的模板法用于制备单分散二氧化钛空心微球(HTS),采用聚苯乙烯(PSA)为模板球,在乙醇溶剂中钛酸四丁酯(TBOT)经水蒸汽催化水解形成二氧化钛/PSA复合微球,然后经高温煅烧得到HTS。经SEM分析,HTS具有优异的单分散性和表面形貌;经XRD分析,在500℃煅烧而成的HTS呈锐钛矿型;同时深入分析了TBOT掺量和反应时间关键因素的影响;HTS粒径大小可以通过调节PSA模板球粒径大小实现。此方法还可用于制备二氧化锆空心微球及其它无机空心微球。
|
| 关 键 词： | 无机化合物 光学材料 溶胶-凝胶化学 X射线衍射 |
Preparation and characterization of monodisperse TiO2 hollow microspheres |
| |
| YAO Hai-bo,HAN Guo-jun.Preparation and characterization of monodisperse TiO2 hollow microspheres[J].Journal of Chinese Electron Microscopy Society,2014(2):101-107. |
| |
| Authors: | YAO Hai-bo HAN Guo-jun |
| |
| Affiliation: | (Department of Chemical Engineering, Binzhou University, Binzhou Shandong 256603, China) |
| |
| Abstract: | Hollow titania sphere （HTS）was well-known for high porosity, photovoltaic and photocatalytic properties, and its applications as catalyst. In this study, a simple and easily scalable approach was offered for producing well-defined size tunable HTS by means of modified sol-gel condensation method in ethanol solvent. In this process, the water vapor promoted the hydrolysis of TBOT to form titania coating spheres, which was very simple and achievable. It had a narrow particle size distribution and commendable surface morphology through SEM. The calcined HTS at 500 ℃displayed crystalline reflection peaks that were characteristic to the anatase phase by XRD. Some effects of TBOT dosage and reaction time were studied in-depth analysis. This method can also be used for the preparation of zirconia hollow microspheres and other inorganic hollow microspheres. |
| |
| Keywords: | inorganic compounds optical materials sol-gel chemistry X-ray diffraction |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
