Exploring a new rapid colorimetric detection method of Cu2+ with high sensitivity and selectivity
文献类型：期刊论文
| 作者 | Hai-Yan Wang、吴爱国 ; Li-Jing Miaoa,b, Jun-Wei Xinb, Zhe-Yu Shenb, Yu-Jie Zhangb, Hai-Yan Wanga,∗∗, Ai-Guo Wub,∗ |
| 刊名 | Sensors and Actuators B: Chemical
 |
| 出版日期 | 2012-10-13 |
| 期号 | 176页码:906—912 |
| 通讯作者 | Hai-Yan Wang、吴爱国 |
| 合作状况 | 李雨桐 |
| 中文摘要 | In this study, we propose a new rapid colorimetric detection method of Cu2+ with high sensitivity and selectivity utilizing starch-stabilized silver nanoparticles (AgNPs), which are synthesized by a green chemistry way. AgNPs gradually become smaller in the presence of Cu2+ due to redox reaction between Ag and Cu2+, which results in color change and UV–vis absorption decrease of the nanoparticle dispersion. Therefore, Cu2+ could be recognized by visualizing the color change of AgNPs dispersed by naked eyes, and quantitatively measured by UV–vis spectra. There is a linear relationship between the absorbance ratio (A0/A, at 400 nm) and the concentration of Cu2+ ranging from 0.1 M to 10 M. The linear coefficient is 0.9968. The lowest detectable concentration is 0.5 M by naked eyes. Furthermore, the selectivity of this detection system for Cu2+ is excellent comparing with other metal ions, such as Hg2+, Co2+, Ba2+, Zn2+, Na+, Fe3+, Sr2+, Pb2+, Cd2+, Ni2+, Ca2+, Mg2+, Mn2+ and K+. The high sensitivity and selectivity of the Cu2+ detection system are ascribed to the unique redox reaction between Ag and Cu2+. ？ 2012 Elsevier B.V. All |
| 学科主题 | 材料科学 |
| 原文出处 | SCI收录 |
| 公开日期 | 2013-12-16 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/9719]  |
| 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 | Hai-Yan Wang、吴爱国,Li-Jing Miaoa,b, Jun-Wei Xinb, Zhe-Yu Shenb, Yu-Jie Zhangb, Hai-Yan Wanga,∗∗, Ai-Guo Wub,∗. Exploring a new rapid colorimetric detection method of Cu2+ with high sensitivity and selectivity[J]. Sensors and Actuators B: Chemical,2012(176):906—912. |
| APA | Hai-Yan Wang、吴爱国,&Li-Jing Miaoa,b, Jun-Wei Xinb, Zhe-Yu Shenb, Yu-Jie Zhangb, Hai-Yan Wanga,∗∗, Ai-Guo Wub,∗.(2012).Exploring a new rapid colorimetric detection method of Cu2+ with high sensitivity and selectivity.Sensors and Actuators B: Chemical(176),906—912. |
| MLA | Hai-Yan Wang、吴爱国,et al."Exploring a new rapid colorimetric detection method of Cu2+ with high sensitivity and selectivity".Sensors and Actuators B: Chemical .176(2012):906—912. |
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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