Colorimetric Response of Dithizone Product and Hexadecyl Trimethyl Ammonium Bromide Modified Gold Nanoparticle Dispersion to 10 Types of Heavy Metal Ions: Understanding the Involved Molecules from Experiment to Simulation
文献类型：期刊论文
| 作者 | 陈亮、吴爱国 ; Yumin Leng, Yonglong, Li, An Gong, Zheyu Shen, Liang Chen,* and Aiguo Wu* |
| 刊名 | langmuir
 |
| 出版日期 | 2013-05-31 |
| 卷号 | 36期号:29页码:7591—7599 |
| 通讯作者 | 陈亮、吴爱国 |
| 合作状况 | 李雨桐 |
| 中文摘要 | A new kind of analytical reagent, hexadecyl trimethyl ammonium bromide (CTAB), and dithizone productmodified gold nanoparticle dispersion, is developed for colorimetric response to 10 types of heavy metal ions (Mn+), including Cr(VI), Cr3+, Mn2+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+, Hg2+, and Pb2+. The color change of the modified gold nanoparticle dispersion is instantaneous and distinct for Mn2+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+, Hg2+, and Pb2+. The color change results from the multiple reasons, such as electronic transitions, cation？π interactions, formation of coordination bonds, and Mn+-induced aggregation of gold nanoparticles (AuNPs). The different combining capacity of heavy metal ions to modifiers results in the different broadening and red-shifting of the plasmon peak of modified AuNPs. In addition, Cr(VI), Cu2+, Co2+, Ni2+, and Mn2+ cause the new UV？ vis absorption peaks in the region of 360？460 nm. The interactions between the modifiers and AuNPs, and between the modifiers and Mn+, are investigated by using Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The results confirm that AuNPs are modified by CTAB and dithizone products through electrostatic interactions and Au？S bonds, respectively, and the Mn+？N bonds form between Mn+ and dithizone products. Furthermore, the experimental and density functional theory calculated IR spectra prove that dithizone reacts with NaOH to produce C6H5O？ and [SCH2N4]2？. The validation of this method is carried out by analysis of heavy metal ions in tap water |
| 学科主题 | 材料科学 |
| 原文出处 | 其他国内刊物 |
| 公开日期 | 2013-12-16 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/9927]  |
| 专题 | 宁波材料技术与工程研究所_宁波所知识产出 |
| 推荐引用方式 GB/T 7714 | 陈亮、吴爱国,Yumin Leng, Yonglong, Li, An Gong, Zheyu Shen, Liang Chen,* and Aiguo Wu*. Colorimetric Response of Dithizone Product and Hexadecyl Trimethyl Ammonium Bromide Modified Gold Nanoparticle Dispersion to 10 Types of Heavy Metal Ions: Understanding the Involved Molecules from Experiment to Simulation[J]. langmuir,2013,36(29):7591—7599. |
| APA | 陈亮、吴爱国,&Yumin Leng, Yonglong, Li, An Gong, Zheyu Shen, Liang Chen,* and Aiguo Wu*.(2013).Colorimetric Response of Dithizone Product and Hexadecyl Trimethyl Ammonium Bromide Modified Gold Nanoparticle Dispersion to 10 Types of Heavy Metal Ions: Understanding the Involved Molecules from Experiment to Simulation.langmuir,36(29),7591—7599. |
| MLA | 陈亮、吴爱国,et al."Colorimetric Response of Dithizone Product and Hexadecyl Trimethyl Ammonium Bromide Modified Gold Nanoparticle Dispersion to 10 Types of Heavy Metal Ions: Understanding the Involved Molecules from Experiment to Simulation".langmuir 36.29(2013):7591—7599. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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