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| 低温水热法制备金红石型纳米晶TiO_2颗粒形貌的研究 | |
| 引用本文： | 金解云,周利民,罗太安,黄群武. 低温水热法制备金红石型纳米晶TiO_2颗粒形貌的研究[J]. 粉末冶金技术, 2009, 27(6) |
| 作者姓名： | 金解云 周利民 罗太安 黄群武 |
| 作者单位： | 1. 东华理工大学核资源与环境教育部重点实验室,江西抚州,344000 2. 东华理工大学核资源与环境教育部重点实验室,江西抚州,344000;天津大学化工学院,天津,300072 3. 天津大学化工学院,天津,300072 |
| 基金项目： | 江西省教育厅科技项目，东华理工大学校长基金项目 |
| 摘 要： | 以四氯化钛和盐酸为反应介质,利用低温水热法制备纯金红石相纳米TiO_2,考察了反应温度和反应时间对TiO_2微结构及形貌的影响.X射线衍射分析表明所有产物均为纯金红石型纳米TiO_2,晶粒尺寸范围4.0～11.5nm.红外光谱和热重分析表明产物TiO_2存在表面羟基和表面水.TEM分析表明,TiO_2形貌和粒径随反应温度或反应时间变化,反应温度60～80℃时样品呈梭形,且彼此聚集呈束状,但120℃以上时呈粒状,且粒径增加.随反应时间(4～40h)延长,TiO_2呈棒状、梭状及球状变化.此外,还对强酸性及低温水热条件下金红石型纳米TiO_2的形成及形貌变化机理作了初步分析. |
| 关 键 词： | 金红石型TiO_2 低温水热法 形貌 反应温度 反应时间 |
Study on the shape of rutile type nano crystalline TiO_2 particles prepared by low temperature hydrothermal method |
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| Jin Jieyun,Zhou Limin,Luo Taian,Huang Qunwu. Study on the shape of rutile type nano crystalline TiO_2 particles prepared by low temperature hydrothermal method[J]. Powder Metallurgy Technology, 2009, 27(6) | |
| Authors: | Jin Jieyun Zhou Limin Luo Taian Huang Qunwu |
| Affiliation: | Jin Jieyun1),Zhou Limin1),2),Luo Taian1),Huang Qunwu2) 1)(Key Laboratory of Nuclear Resources and Environment of Ministry of Education,East China Institute of Technology,Fuzhou Jiangxi 344000,China) 2)(School of Chemistry and Chemical Engineering,Tianjin University,Tianjin 300072,China) |
| Abstract: | The pure rutile phase nano crystalline TiO2 particles were prepared by low temperature hydrothermal method using titanium tetrachloride and HCl as reaction media.The effects of reaction temperature and reaction time on the microstructure and the morphology of the TiO2 particles were investigated.The X-ray diffraction patterns show that all of the TiO2 samples were pure rutile phase.The average grain size is in the range of 4.0-11.5 nm.Fourier transform infrared spectra and thermogravimetry analysis show tha... |
| Keywords: | rutile TiO_2 low temperature hydrothermal method shape reaction temperature reaction time |
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