Exfoliated graphitic carbon dots: Application in heavy metal ion sensing

被引：25

作者：

Ansi, V. A. ^{[1
]}

Renuka, N. K. ^{[1
]}

机构：

[1] Univ Calicut, Dept Chem, Calicut 673635, Kerala, India

来源：

JOURNAL OF LUMINESCENCE | 2019年 / 205卷

关键词：

Highly Exfoliated Graphitic Carbon dots; Hg (II) sensing; Excitation energy transfer; GREEN SYNTHESIS; COLORIMETRIC DETECTION; GOLD NANOPARTICLES; ENERGY-TRANSFER; AQUEOUS-MEDIA; MERCURY(II); POLYMER; SENSOR; WATER;

D O I：

10.1016/j.jlumin.2018.09.061

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Highly Exfoliated Graphitic Carbon dot (HEG carbon dot) is reported herein, exploiting commercially available table sugar (sucrose) as a green precursor. An amorphous carbon matrix, made of 7-8 graphenic units constitutes the HEG carbon dot core. This system exhibits excitation energy transfer with the Xanthene dye, Rhodamine-B, which is expressed as a noticeable enhancement in the luminescence of the dye. Metal ion assisted hindrance in FRET is noticed in presence of Hg (II) ion, which paves way to the fabrication of an efficient Hg (II) ion sensing tool. The system exhibits high selectivity and sensitivity with Limit of Detection 98 pM.

引用

页码：467 / 474

页数：8

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