| 晶种法制备单分散的金纳米粒子及光学性能研究 |
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| 引用本文： | 高燕红,张念椿,冯炫,刘应亮.晶种法制备单分散的金纳米粒子及光学性能研究[J].贵金属,2010,31(4). |
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| 作者姓名： | 高燕红 张念椿 冯炫 刘应亮 |
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| 作者单位： | 1. 暨南大学,化学系,纳米化学研究所,广东,广州,510632;广东省疾病控制中心,广东,广州,510300
2. 暨南大学,化学系,纳米化学研究所,广东,广州,510632 |
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| 基金项目： | 国家自然科学基金(No20671042,No50872045); 广东省自然科学基金团队项目(No05200555)资助 |
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| 摘 要： | 加入聚乙烯吡咯烷酮(PVP)做稳定化试剂,用硼氢化钾还原氯金酸,结合晶种生长法制备了单分散性、粒径小的胶体金。通过晶种生长法,在反应中加入PVP试剂,用抗坏血酸做还原剂,制备了单分散的金纳米棒。结果表明,PVP试剂对金纳米粒子的形貌有重要的影响;加入PVP试剂得到的金纳米粒子(胶体金和金纳米棒)分散性好,无明显的团聚现象。应用透射电镜,纳米粒度分析仪和紫外-可见分光光度计对不同粒径的纳米金进行了表征。
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| 关 键 词： | 金属材料 胶体金 纳米金棒 聚乙烯吡咯烷酮 晶种生长法 单分散 |
Monodisperse Gold Nanoparticles Prepared by the Seeded Growth Method and Their Optical Properties |
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| GAO Yanhong,ZHANG Nianchun,FENG Xuan,LIU Yingliang.Monodisperse Gold Nanoparticles Prepared by the Seeded Growth Method and Their Optical Properties[J].Precious Metals,2010,31(4). |
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| Authors: | GAO Yanhong ZHANG Nianchun FENG Xuan LIU Yingliang |
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| Affiliation: | GAO Yanhong1,2,ZHANG Nianchun1,FENG Xuan1,LIU Yingliang1(1.Nanochemistry Institute,Department of Chemistry,Jinan University,Guangzhou 510632,Guangdong,China,2.Centers for Disease Control and Prevention of Guangdong Province,Guangzhou 510300,China) |
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| Abstract: | Monodisperse colloidal golds were prepared by the seed-induced growth method using potassium borohydride as a reducing reagent and polyvinylpyrrolidone(PVP) as a stabilization reagent.With PVP reagent added into the preparative system and ascorbic acid as the reducing agent,monodisperse gold nanorods were also prepared by the same method.The experiments showed the PVP reagent had an important effect on gold nonoparticle.When PVP reagent was added,gold nanoparticles(including colloidal golds and gold nanorod... |
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| Keywords: | metal materials colloidal golds gold nanorods PVP seed-induced growth method monodisperse |
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