A new rapid colorimetric detection method of Mn2+ based on tripolyphosphate modified silver nanoparticles
文献类型：期刊论文
| 作者 | Wu AG(吴爱国) ; Yue-Xia Gaoa,b, Jun-Wei Xina, Zhe-Yu Shena, Wei Panb, Xing Li b, Ai-Guo Wua,∗ |
| 刊名 | Sensors and Actuators B: Chemical
 |
| 出版日期 | 2013-03-18 |
| 期号 | 181页码:288—293 |
| 通讯作者 | 吴爱国 |
| 合作状况 | 李雨桐 |
| 中文摘要 | A new facile and rapid colorimetric method is proposed for detection of manganese ion (Mn2+) with high sensitivity and excellent selectivity using tripolyphosphate stabilized silver nanoparticles (P3O10 5？–AgNPs). The silver nanoparticles (AgNPs) were prepared by reducing silver nitrate with sodium borohydride in the presence of sodium tripolyphosphate. Energy dispersive X-ray spectrum (EDS) and infrared spectra (IR) indicate that tripolyphosphates anions (P3O10 5？) are capped on the surfaces of AgNPs. The P3O10 5？–AgNPs aggregate quickly in the presence of Mn2+, which leads to color change of the nanoparticle dispersion from yellow to reddish brown and decrease of the surface plasmon absorption intensity. The Mn2+ can form a six-coordinated structure with P3O10 5？ coating on the AgNPs and leads to formation of large particles aggregation. The selectivity of P3O10 5？–AgNPs detection system for Mn2+ is excellent comparing with other ions and mixture of the above ions except Mn2+. Furthermore, this Mn2+ detection method based on surface plasmon resonance (SPR) absorption by ultraviolet and visible spectrophotometer (UV–vis) offers a wide linear detection range from 0.05 M to 20 M. The lowest detection concentration by the naked eyes is 0.1 M, which is also lower than the national table-water standard (1.8 M). The results of Mn2+ detection in real water samples reinforce that our P3O10 5？–AgNPs detection system is applicable for Mn2+ detection in the real environmental water samples. |
| 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/174433/9852]  |
| 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 | Wu AG,Yue-Xia Gaoa,b, Jun-Wei Xina, Zhe-Yu Shena, Wei Panb, Xing Li b, Ai-Guo Wua,∗. A new rapid colorimetric detection method of Mn2+ based on tripolyphosphate modified silver nanoparticles[J]. Sensors and Actuators B: Chemical,2013(181):288—293. |
| APA | Wu AG,&Yue-Xia Gaoa,b, Jun-Wei Xina, Zhe-Yu Shena, Wei Panb, Xing Li b, Ai-Guo Wua,∗.(2013).A new rapid colorimetric detection method of Mn2+ based on tripolyphosphate modified silver nanoparticles.Sensors and Actuators B: Chemical(181),288—293. |
| MLA | Wu AG,et al."A new rapid colorimetric detection method of Mn2+ based on tripolyphosphate modified silver nanoparticles".Sensors and Actuators B: Chemical .181(2013):288—293. |
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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