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
收藏
页码：79405 / 79409
页数：5
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