| 丁琼,陈云华,张海波.化学通报,2019,82(2):187-191. |
| 纳米金的制备及其在重金属离子检测中的应用——一个分析化学综合性研究型实验 |
| Chemical Comprehensive Experiment: Synthesis of Gold Nanoparticles by Boron Cluster and its application in heavy metal ion detection |
| 投稿时间：2018-07-11 修订日期：2018-10-31 |
| DOI： |
| 中文关键词: 纳米金 硼簇化合物 比色法 Cr3+ Pb2+ |
| 英文关键词:gold nanoparticles (AuNPs) , Cs2[closo-B12H12] , heavy metal ions |
| 基金项目: |
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| 摘要点击次数: 1825 |
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| 中文摘要: |
| 具有可控粒径、形貌纳米金的制备是近年来的一大研究热点。本实验以铯盐硼簇(Cs2B12H12)为还原剂和包覆剂,成功在水相中将氯金酸还原制备了纳米级别的单分散纳米金颗粒。并将制备得到的纳米金胶体应用于重金属离子(Cr3+和Pb2+)的比色法检测中,进一步利用紫外可见光谱可以对重金属离子实现定量检测。通过该实验,可以让学生学习制备纳米金的方法,掌握利用紫外等多种分析手段对纳米粒子结构及性能进行表征的技能。 |
| 英文摘要: |
| The research of Au nanoparticles (AuNPs) appears to be one of the most popular subjects over the past decade. Gold nanoparticles (AuNPs) were synthesized controllably at a mild condition and only contains two reactants, chloroauric acid and boron clusters, in which Cs2[closo-B12H12], a cesium boron cluster, can play a dual role as reductant and protector. The obtained AuNPs remained thermodynamically stable over 3 months, and exhibited high performance in phase transfer and sensing of heavy metal ions. The results can be used as a comprehensive experiment in the course of analysis chemistry experiment. The students can learn how to use UV-Vis and other methods to characterize the nanoparticles. |
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