| 高岭石层间原位合成纳米银及其表征 |
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| 引用本文： | 杜一挺,王林江,谢襄漓.高岭石层间原位合成纳米银及其表征[J].贵金属,2008,29(4). |
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| 作者姓名： | 杜一挺 王林江 谢襄漓 |
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| 作者单位： | 1. 桂林工学院,有色金属材料及其加工新技术省部共建教育部重点实验室,广西,桂林,541004;桂林工学院,材料与化学工程系,广西,桂林,541004
2. 桂林工学院,材料与化学工程系,广西,桂林,541004 |
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| 摘 要： | 以高岭石-二甲基亚砜作为前驱体,PVP(聚乙烯吡咯烷酮)作分散剂,银氨络合物层间取代,以高岭石的层间作为反应器来控制银粒子的大小,制备出Ag/高岭石复合物.XRD表明,PVP对高岭石进行了表面改性,促进了纳米银粒子在层间的合成,出现明显的Ag的(111)、(200)、(220)、(311)4个衍射峰.根据小角度Ag的(001)衍射峰可知,高岭石层间距由0.716nm被扩大到4.53nm.TEM直观地表现了银在高岭石层间的形貌.
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| 关 键 词： | 金属材料 纳米银 高岭石 银氨络合物 表征 |
In-situ Reaction Synthesis and Characterization of Silver Nanoparticles in the Interlamellar Space of Kaolinite Composites |
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| DU Yiting,WANG Linjiang,XIE Xiangli.In-situ Reaction Synthesis and Characterization of Silver Nanoparticles in the Interlamellar Space of Kaolinite Composites[J].Precious Metals,2008,29(4). |
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| Authors: | DU Yiting WANG Linjiang XIE Xiangli |
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| Affiliation: | DU Yiting1,2,WANG Linjiang1,XIE Xiangli2 (1.Key Laboratory of New Processing Technology Nonferrous Materials , Metal for of Ministry of Education,Guilin University of Techology,Guilin,Guangxi 541004,China,2.Department of Materials , Chemistry Engineering.Guilin University of Techology,China) |
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| Abstract: | Silver particles were prepared by using the kaolinite-dimethyl sulfoxide as precursor and PVP as dispersant,and by interlaminar substitution of silver-ammino complex.The kaolinite interlamination was used as a reactor to control the silver particle size for the preparation of kaolinite-sliver intercalation complex.XRD pattern indicates that PVP modifies surface of the kaolinite and promotes synthesis of Ag particles in the kaolinite interlayers.Four diffraction peaks of Ag were observed.The(001) peak of sma... |
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| Keywords: | PVP |
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