| Ag/TiO_2纳米复合材料的制备及结构研究 |
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| 引用本文： | 闻明,李旸,李艳琼,张俊敏,管伟明. Ag/TiO_2纳米复合材料的制备及结构研究[J]. 贵金属, 2010, 31(1) |
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| 作者姓名： | 闻明 李旸 李艳琼 张俊敏 管伟明 |
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| 作者单位： | 昆明贵金属研究所,云南,昆明,650106 |
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| 基金项目： | 云南省应用基础研究基金，云南省技术创新人才培养对象资助项目 |
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| 摘 要： | 首先采用化学氧化在块体Ti表面制备出多孔纳米TiO2,随后通过高能离子束轰击实现Ag纳米粒子在TiO2表面的有效固定,最终在Ti表面制备出Ag/TiO2纳米复合材料。采用XRD、SEM及TEM手段对其进行了结构表征。结果表明,化学氧化法可制备出多孔纳米TiO2,其晶粒尺寸为10 nm左右;通过调节高能Ar离子束轰击的时间,可对TiO2晶粒尺寸进行小范围有效控制。
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| 关 键 词： | 复合材料 Ag纳米粒子 多孔TiO_2 |
Study on Preparation and Structure of Ag/TiO_2 Nanocomposites |
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| WEN Ming,LI Yang,LI Yanqiong,ZHANG Junmin,GUAN Weiming. Study on Preparation and Structure of Ag/TiO_2 Nanocomposites[J]. Precious Metals, 2010, 31(1) |
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| Authors: | WEN Ming LI Yang LI Yanqiong ZHANG Junmin GUAN Weiming |
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| Abstract: | In present study, porous nanocrystalline TiO_2 was prepared firstly on surface of bulk Ti by chemical oxidation, and then Ag nanoparticles was effectively fixed on TiO_2 by high energy Ar ion beam bombardment. Finally, Ag/TiO_2 nanocomposites was formed on Ti surface. XRD, SEM and TEM were used for structure characterization. The results show that porous nanocrystalline TiO_2 with grain size ≈10 nm could be prepared by chemical oxidation, and the grain size of TiO_2 could be controlled by adjusting bombardment time. |
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| Keywords: | composite Ag nanoparticle porous TiO_2 |
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