| 混合表面活性剂分散纳米CeO2颗粒的协同效应 |
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| 引用本文： | 宋晓岚,邱冠周,史训达,王海波,曲鹏.混合表面活性剂分散纳米CeO2颗粒的协同效应[J].湖南大学学报(自然科学版),2005,32(5):95-99. |
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| 作者姓名： | 宋晓岚 邱冠周 史训达 王海波 曲鹏 |
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| 作者单位： | 1. 中南大学,资源加工与生物工程学院,湖南,长沙,410083
2. 有研半导体材料股份有限公司,硅片制造事业部,北京,100088 |
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| 基金项目： | 国家自然科学基金项目资助（59925412）;湖南省自然科学基金项目资助（03JJY3015） |
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| 摘 要： | 选用CTAB阳离子型和SDBS阴离子型分别与Tween80非离子型表面活性剂进行复配，通过Zeta电位、吸附等温线以及沉降性能测定，研究了混合表面活性剂对水相介质中纳米CeO2颗粒分散稳定性能影响的协同效应。结果表明：不同混合表面活性剂体系中纳米CeO2颗粒表现出不同的表面电性，从而影响其分散稳定行为；纳米CeO2颗粒对两种混合表面活性剂均有良好的吸附性能，但其吸附等温线形式有所不同；碱性条件下，混合表面活性剂能显著改善纳米CeO2颗粒的分散稳定性，其中SDBS与Tween 80的协同作用更为明显。
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| 关 键 词： | 纳米颗粒 CeO2 表面活性剂 分散稳定 协同效应 |
| 文章编号： | 1000-2472（2005）05-0095-05 |
| 收稿时间： | 01 27 2005 12:00AM |
| 修稿时间： | 2005-01-27 |
Synergistic Effect of Mixed Surfactants on the Dispersion Stability of CeO2 Nanoparticles |
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| SONG Xiao-lan,QIU Guan-zhou,SHI Xun-d,WANG Hai-bo,QU Peng School of Resources Processing and Bioengineering,Central South University,Changsh,Hunan,China; . Silicon Wafer Manufature.Synergistic Effect of Mixed Surfactants on the Dispersion Stability of CeO2 Nanoparticles[J].Journal of Hunan University(Naturnal Science),2005,32(5):95-99. |
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| Authors: | SONG Xiao-lan QIU Guan-zhou SHI Xun-d WANG Hai-bo QU Peng School of Resources Processing and Bioengineering Central South University Changsh Hunan China; Silicon Wafer Manufature |
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| Institution: | SONG Xiao-lan, QIU Guan-zhou, SHI Xun-da ,WANG Hai-bo, QU Peng School of Resources Processing and Bioengineering, Central South University, Changsha,Hunan 410083 ,China; 2. Silicon Wafer Manufature Department, Grinm Semiconductor Materials,Ltd, Beijing 100088,China) |
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| Abstract: | The synergistic effect of the mixture of CTAB cationic (or SDBS anionic) and Tween 80 nonionic surfactants on dispersion stability of CeO2 nanoparticles in water solutions was studied by the Zeta potential, adsorption isotherm and settling experiment. The results show that in different mixed surfactant systems, nanoparticles have different surface electrical properties, by which the dispersion stability are affected. nanoparticles have good adsorption property for both two kinds of surfactant mixtures, but the adsorption isotherm shapes are different. Under the alkalescent condition, the dispersion stability of CeO2 nanoparticles in mixed surfactant systems is improved markedly compared with in no surfactant-free system, and synergistic effect of mixture of Tween 80 and SDBS is more remarkable than the other one. |
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| Keywords: | nanoparticles cerium dioxide surfactants dispersion stability synergistic effect |
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