Issue 19, 2014

Europium(iii) complex-functionalized magnetic nanoparticle as a chemosensor for ultrasensitive detection and removal of copper(ii) from aqueous solution

Abstract

Ultrasensitive, accurate detection and separation of heavy metal ions is very important in environmental monitoring and biological detection. In this paper, a highly sensitive and specific detection method for Cu2+ based on the fluorescence quenching of a europium(III) hybrid magnetic nanoprobe is presented. This nanoprobe can detect Cu2+ over a wide pH range (5.0–10.0) with a detection limit as low as 0.1 nM and it can be used for detecting Cu2+ in living cells. After the magnetic separation, the Cu2+ concentration decreased to 1.18 ppm, which is less than the US EPA drinking water standard (1.3 ppm), and more than 70% Cu2+ could be removed when the amount of nanocomposite 1 reached 1 mg.

Graphical abstract: Europium(iii) complex-functionalized magnetic nanoparticle as a chemosensor for ultrasensitive detection and removal of copper(ii) from aqueous solution

Supplementary files

Article information

Article type
Paper
Submitted
20 Jun 2014
Accepted
01 Aug 2014
First published
05 Aug 2014

Nanoscale, 2014,6, 11473-11478

Europium(III) complex-functionalized magnetic nanoparticle as a chemosensor for ultrasensitive detection and removal of copper(II) from aqueous solution

J. Liu, W. Zuo, W. Zhang, J. Liu, Z. Wang, Z. Yang and B. Wang, Nanoscale, 2014, 6, 11473 DOI: 10.1039/C4NR03454F

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