Detection of Lead Ions with Fe3O4/Ag Core-Shell Nanoparticles

被引：6

作者：

Jiang, Caiyun ^{[1
]}

Ma, Xiaoyuan ^{[3
]}

Yu, Fang ^{[1
]}

Shi, Xueping ^{[1
]}

Yang, Aiping ^{[1
]}

Wang, Yuping ^{[2
]}

机构：

[1] Jiangsu Inst Commerce, Jiangsu Engn & Res Ctr Food Safety, Dept Engn & Technol, Nanjing 210007, Jiangsu, Peoples R China

[2] Nanjing Normal Univ, Coll Chem & Mat Sci, Nanjing 210097, Jiangsu, Peoples R China

[3] Jiangnan Univ, Sch Food Sci & Technol, Wuxi 214122, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2016年 / 16卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Fe3O4; Ag; Core-Shell Nanoparticles; Pb2+; Coordination; MAGNETIC NANOPARTICLES; WASTE-WATER; METAL-IONS; PB(II); RISK; PRECONCENTRATION; ADSORPTION; COMPLEXES; TOXICITY; INDUSTRY;

D O I：

10.1166/jnn.2016.11345

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fe3O4/Ag core-shell nanoparticles were used for the detection of Pb2+. Using the Fe3O4 magnetic nanoparticles with small size, the Fe3O4/Ag core-shell nanoparticles were synthesized by reducing Ag[(NH3)(2)](+) with gallic acid (GA) as a reducer and surface modifier. With the help of the coordination behavior of Pb2+ with the GA molecules bonded on the surface of the core-shell nanoparticles, it can be performed to quantitatively detect the Pb2+. The linear response range is from 5 x 10(-9) M to 1.0 x 10(-5) M. The developed method shows a good selectivity for Pb2+. The Fe3O4/Ag core-shell nanoparticles are easily to recover for their magnetism. After being treated with EDTA, the Fe3O4/Ag core-shell nanoparticles can be used again and, therefore, the testing costs can be reduced.

引用

页码：7215 / 7219

页数：5

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