| 抗坏血酸用于Ag纳米粒子的制备及其表面增强拉曼散射活性研究 |
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| 引用本文： | 薛建跃,刘孝恒,王 新. 抗坏血酸用于Ag纳米粒子的制备及其表面增强拉曼散射活性研究[J]. 稀有金属材料与工程, 2012, 41(9): 1672-1675 |
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| 作者姓名： | 薛建跃 刘孝恒 王 新 |
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| 作者单位： | 1. 巢湖学院,安徽巢湖238000;南京理工大学软化学与功能材料教育部重点实验室,江苏南京210094
2. 南京理工大学软化学与功能材料教育部重点实验室,江苏南京,210094 |
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| 基金项目： | 国家自然科学基金(20974045);江苏省自然科学基金(BK2009385);巢湖学院自然科学基金(XLZ-200902) |
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| 摘 要： | 采用硝酸银(AgNO3)为前躯体,抗坏血酸(Vc)为还原剂,通过一条绿色途径合成了Ag纳米粒子,其粒径大小分布范围窄.对产物进行X射线衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)、紫外-可见分光光度(UV-Vis)等多种手段进行表征.以吡啶(Py)作为探针分子进行表面增强拉曼散射效应的测定,具有很好的增强效果.结果表明,光谱的检测限为10-10 mol·L-1,且随探针分子浓度下降,拉曼信号变化趋势很稳定,为后续定量分析打下基础.
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| 关 键 词： | 抗坏血酸 Ag纳米粒子 表面增强拉曼散射 |
| 收稿时间： | 2011-09-10 |
Preparation of Silver Nanoparticles by Ascorbic Acid and the Surface-Enhanced Raman Scattering Effect |
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| Xue Jianyue,Liu Xiaoheng and Wang Xin. Preparation of Silver Nanoparticles by Ascorbic Acid and the Surface-Enhanced Raman Scattering Effect[J]. Rare Metal Materials and Engineering, 2012, 41(9): 1672-1675 |
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| Authors: | Xue Jianyue Liu Xiaoheng Wang Xin |
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| Affiliation: | 1,2 (1. Chaohu College, Chaohu 238000, China)(2. Key Laboratory of Soft Chemistry and Functional Materials of the Ministry of Education,Nanjing University of Science and Technology, Nanjing 210094, China) |
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| Abstract: | Silver nanoparticles were synthesized by a totally green approach with silver nitrate (AgNO3) as precursor and ascorbic acid (Vc) as reducing agent. The nano-silver particles had narrow particle size distribution. The feature, structure and optical absorption properties of silver nanoparticles were characterized by X-ray diffraction (XRD), Raman spectra, ultraviolet visible spectrum (UV-Vis), scanning electron microscope (SEM) and transmission electron microscope (TEM). Surface-enhanced Raman scattering (SERS) on the prepared nano-silver particles as substrate was investigated by pyridine as the probe molecule. The results show that the detection limit is down to 10-10 mol·L-1. The variation tendency of Raman signal is stable with the change of the probe molecule concentration, which can be used for the study of the quantitative analysis. |
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| Keywords: | ascorbic acid silver nanoparticles SERS |
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