| 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 |
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| 引用本文： | 丁琼,陈云华,张海波. 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[J]. 化学通报, 2019, 82(2): 187-191 |
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| 作者姓名： | 丁琼 陈云华 张海波 |
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| 作者单位： | 武汉大学化学与分子科学学院 化学国家级实验教学示范中心(武汉大学) 武汉430072;武汉大学化学与分子科学学院 化学国家级实验教学示范中心(武汉大学) 武汉430072;武汉大学化学与分子科学学院 化学国家级实验教学示范中心(武汉大学) 武汉430072 |
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| 基金项目： | 武汉大学教学改革项目“近化学专业物理化学课程体系改革和细分”;武汉大学教学研究项目“分析化学实验信息化教学平台建设”资助 |
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| 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。
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| 关 键 词： | 纳米金 硼簇化合物 重金属离子 |
| 收稿时间： | 2018-07-11 |
| 修稿时间： | 2018-10-31 |
Chemical Comprehensive Experiment: Synthesis of Gold Nanoparticles by Boron Cluster and its application in heavy metal ion detection |
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| Ding Qiong,Chen Yunhua and Zhang Haibo. Chemical Comprehensive Experiment: Synthesis of Gold Nanoparticles by Boron Cluster and its application in heavy metal ion detection[J]. Chemistry, 2019, 82(2): 187-191 |
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| Authors: | Ding Qiong Chen Yunhua Zhang Haibo |
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| Affiliation: | College of Chemistry and Molecular Sciences,National Demonstration Center for Experimental Chemistry Education,Wuhan University,Hubei Wuhan 430072,College of Chemistry and Molecular Sciences,National Demonstration Center for Experimental Chemistry Education,Wuhan University,Hubei Wuhan 430072,College of Chemistry and Molecular Sciences,National Demonstration Center for Experimental Chemistry Education,Wuhan University,Hubei Wuhan 430072 |
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| Abstract: | 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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| Keywords: | gold nanoparticles (AuNPs) , Cs2[closo-B12H12] , heavy metal ions |
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