| 12-磷钨酸体系水热法制备金颗粒及其表征 |
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| 引用本文： | 张莉,王聪,卓馨,陶淑华. 12-磷钨酸体系水热法制备金颗粒及其表征[J]. 过程工程学报, 2010, 10(1): 155-160 |
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| 作者姓名： | 张莉 王聪 卓馨 陶淑华 |
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| 作者单位： | 宿州学院化学与生命科学系宿州学院化学与生命科学系宿州学院化学与生命科学系宿州学院化学与生命科学系 |
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| 基金项目： | 国家自然科学基金资助项目(编号:20871089);;安徽省教育厅自然科学研究重点基金资助项目(编号:KJ2007A076);;安徽省教育厅自然科学研究一般基金资助项目(编号:KJ2008B182) |
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| 摘 要： | 利用Keggin结构的12-磷钨酸作为软模板，采用水热法还原氯金酸制备金颗粒. 考察了AuCl4-离子与12-磷钨酸的摩尔比、反应时间及反应温度对Au颗粒的影响. 用TEM, UV-Vis, FESEM, XPS, XRD等手段对所制金纳米颗粒的形貌、组分、粒径和结构进行了表征. 结果表明，HAuCl4与磷钨酸反应速率较快，可获得尺寸范围较大的球形、三角形、多孪晶和六边形等不同形貌的Au颗粒. 对Au颗粒的形成机理进行了探讨.
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| 关 键 词： | 水热法 磷钨酸 金纳米颗粒 |
| 收稿时间： | 2009-10-09 |
| 修稿时间： | 2009-12-29 |
Preparation and Characterization of Gold Nanoparticles by Hydrothermal Technique in a Phosphotungstate Acid Solution System |
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| ZHANG Li,WANG Cong,ZHUO Xin,TAO Shu-hua. Preparation and Characterization of Gold Nanoparticles by Hydrothermal Technique in a Phosphotungstate Acid Solution System[J]. Chinese Journal of Process Engineering, 2010, 10(1): 155-160 |
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| Authors: | ZHANG Li WANG Cong ZHUO Xin TAO Shu-hua |
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| Affiliation: | Department of Chemistry & Biology, Suzhou UniversityDepartment of Chemistry & Biology, Suzhou UniversityDepartment of Chemistry & Biology, Suzhou UniversityDepartment of Chemistry & Biology, Suzhou University |
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| Abstract: | Gold nanoparticles were synthesized by reduction of chloroaurate acid (HAuCl4) through hydrothermal synthesis. The effects of influential parameters on synthesis of gold nanoparticles were studied, such as molar ratio of HAuCl4 to phosphotungstate acid, reaction time, and reaction temperature. Morphology, composition, particle size and structure of the gold nanoparticles were characterized by TEM, UV-Vis, FESEM, XPS, and XRD. The results showed that the reaction rate of HAuCl4 and phosphotungstate acid was fast. Au particles with different sizes were synthesized. The morphologies of Au particles such as sphere-like, triangular, multiple-twinned particles, and hexagonal ones could be obtained. The formation mechanism of Au particles was also discussed. |
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| Keywords: | hydrothermal synthesis phosphotungstic acid Au nanoparticles |
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