Selective detection of Hg2+ using fluorescent rhodamine-functionalized Fe3O4 nanoparticles

被引：5

作者：

Kim, Kyung Tae ^{[1
]}

Jung, Hyo Sung ^{[2
]}

Ahn, Junho ^{[3
,4
]}

Choi, Yeonweon ^{[3
,4
]}

Jung, Jong Hwa ^{[3
,4
]}

Park, Junboum ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Civil & Environm Engn, Seoul 151744, South Korea

[2] Korea Univ, Dept Chem, Seoul 136701, South Korea

[3] Gyeongsang Natl Univ, Dept Chem, Jinju 660701, South Korea

[4] Gyeongsang Natl Univ, Res Inst Nat Sci, Jinju 660701, South Korea

来源：

RSC ADVANCES | 2016年 / 6卷 / 83期

基金：

新加坡国家研究基金会;

关键词：

MAGNETIC NANOPARTICLES; CHEMODOSIMETER; MERCURY; IONS; CHEMOSENSORS; DELIVERY; SILICA; MEDIA;

D O I：

10.1039/c6ra16338f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel hybrid nanomagnets functionalized with a rhodamine derivative were prepared, and their spectroscopic behavior in the selective detection and removal of Hg2+ was investigated. Selective sensing of mercury ions was followed by a structural transformation of the rhodamine motif to a highly conjugated xanthene moiety, causing a ca. 5.3-fold fluorescence enhancement. Moreover, the selective detection and removal of Hg2+ by the hybrid nanomagnets in the presence of other metal ions were confirmed by fluorescence spectroscopy. These findings provide a promising new method for the detection and removal of Hg2+ from environmental pollutants.

引用

页码：79405 / 79409

页数：5

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