| PVP还原制备花朵状银纳米颗粒 |
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| 引用本文： | 何辉,周家霆,董红建,宋永辉.PVP还原制备花朵状银纳米颗粒[J].黄金,2013(1):5-9. |
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| 作者姓名： | 何辉 周家霆 董红建 宋永辉 |
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| 作者单位： | 中金嵩县嵩原黄金冶炼有限责任公司;西安建筑科技大学冶金工程学院 |
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| 基金项目： | 陕西省教育厅专项基金项目(05JK242);西安建筑科技大学专项基金(JC1005) |
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| 摘 要： | 以硝酸银为前驱体,聚乙烯吡咯烷酮为还原剂和保护剂,制备出了花朵状纳米银。利用紫外可见吸收光谱（UV-Vis）、扫描电子显微镜（SEM）、X射线衍射仪（XRD）及傅里叶红外光谱仪（FT-IR）等对其进行了分析表征。研究表明,制得的Ag纳米颗粒属于面心立方结构,随着反应温度的升高,Ag纳米颗粒形貌由类球形到立方体形、薄片形、花朵形转变,溶液中的Ag＋会得到PVP分子内酰胺基中N的给电子,使Ag＋获得电子而转化为Ag。
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| 关 键 词： | 聚乙烯吡咯烷酮 银纳米粒子 花朵状 形貌 |
Synthesis of flower-like silver nanoparticles by polyvinyl pyrrolidone(PVP) reduction |
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| He Hui,Zhou Jiating,Dong Hongjian,Song Yonghui.Synthesis of flower-like silver nanoparticles by polyvinyl pyrrolidone(PVP) reduction[J].Gold,2013(1):5-9. |
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| Authors: | He Hui Zhou Jiating Dong Hongjian Song Yonghui |
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| Affiliation: | 1.Songyuan Gold Smelting Limited Liability Company,Zhongjin Gold Corporation;2.Metallurgical Engineering School,Xi’an University of Architecture and Technology) |
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| Abstract: | The flower-like silver nanoparticles were synthesizecl using silver nitrate （AgNO3） as precursor and polyvinyl pyrrolidone （PVP） as reductive and protective agent. Surface characteristics of the silver nanoparticles were analyzed by UV-Vis absorption spectroscopy （UV-vis）, Scanning Electron Microscope （SEM）, X-ray Diffraction （XRD）, Fourier transform infrared （FT-IR）. The result showed that silver nanoparticles belong to face-centered cubic structure and with the temperature increasing, the form will transform from spherical to cubic and then to slice shape, flower-like silver nanoparticle. Ag ^＋ in the solution would be reduced to Ag by amino N in PVP. |
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| Keywords: | PVP silver nanoparticles flower-like morphology |
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