| 二氧化钛干凝胶水热法制备纳米管及其机理研究 |
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| 引用本文： | 孙振亚,杜露,彭茜茜,杨颖. 二氧化钛干凝胶水热法制备纳米管及其机理研究[J]. 武汉理工大学学报, 2012, 34(8): 1-4 |
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| 作者姓名： | 孙振亚 杜露 彭茜茜 杨颖 |
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| 作者单位： | 1. 武汉理工大学资源与环境工程学院,武汉430070;武汉理工大学材料研究与测试中心,武汉430070
2. 武汉理工大学资源与环境工程学院,武汉,430070 |
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| 基金项目： | 国家自然科学基金(40372028) |
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| 摘 要： | 以溶胶凝胶法自制的干凝胶为原料,通过水热法和离子交换成功制备出长为50～300nm,直径为5～10nm的纳米管。采用TEM、XRD分析手段,对在不同工艺条件下获得产物的形态和结构进行表征。结果表明,水热后生成的纳米粉体为纳米片,经H+交换后,纳米片成功的卷曲成纳米管,且合成纳米管的成分为H2Ti5O11.3H2O,结晶度相对纳米颗粒而言有所降低。
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| 关 键 词： | 二氧化钛 干凝胶 纳米管 离子交换 |
Preparation of Titania Nanotube by Hydrothermal Method in Xerogel and Mechanism Study |
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| SUN Zhen-ya,DU Lu,PENG Qian-qian,YANG Ying. Preparation of Titania Nanotube by Hydrothermal Method in Xerogel and Mechanism Study[J]. Journal of Wuhan University of Technology, 2012, 34(8): 1-4 |
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| Authors: | SUN Zhen-ya DU Lu PENG Qian-qian YANG Ying |
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| Affiliation: | 1(1.School of Resources and Environmental Engineering,Wuhan University of Technology, Wuhan 430070,China;2.Materials Research and Testing Center,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | Titanate nanotubes have been sucessfully prepared by an alkaline hydrothermal process with TiO2 nanopowder as precursor which is prepared by sol-gel.The resultant nanotubes display external diameter between 5～10 nm and extent between 50～300 nm.Morphological and structural evolution of TiO2 nanotubes after hydrothermal process and ion-exchange reaction have been investigated by transmission electron microscopy(TEM),X-ray diffraction analyses.The result shows that nano-plates are synthesized by hydrothermal method,and then convert to nanotubes after ion-exchange reaction.The crystallinity of synthetic nanotube with nominal composition of H2Ti5O11·3H2O has decreased than nanoparticle. |
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| Keywords: | titanium dioxide xerogel nanotube ion-exchange |
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