Economical, Green Synthesis of Fluorescent Carbon Nanoparticles and Their Use as Probes for Sensitive and Selective Detection of Mercury(II) Ions

被引：985

作者：

Lu, Wenbo ^{[1
]}

Qin, Xiaoyun ^{[1
]}

Liu, Sen ^{[1
]}

Chang, Guohui ^{[1
]}

Zhang, Yingwei ^{[1
]}

Luo, Yonglan ^{[1
]}

Asiri, Abdullah M. ^{[2
,3
]}

Al-Youbi, Abdulrahman O. ^{[2
,3
]}

Sun, Xuping ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China

[2] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah 21589, Saudi Arabia

[3] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, Jeddah 21589, Saudi Arabia

来源：

ANALYTICAL CHEMISTRY | 2012年 / 84卷 / 12期

基金：

中国国家自然科学基金;

关键词：

LABEL-FREE DETECTION; HYDROTHERMAL CARBONIZATION; QUANTUM DOTS; HG2+; NANODOTS; GLUCOSE; ROUTE;

D O I：

10.1021/ac3007939

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The present article reports on a simple, economical, and green preparative strategy toward water-soluble, fluorescent carbon nanoparticles (CPs) with a quantum yield of approximately 6.9% by hydrothermal process using low cost wastes of pomelo peel as a carbon source for the first time. We further explore the use of such CPs as probes for a fluorescent Hg2+ detection application, which is based on Hg2+-induced fluorescence quenching of CPs. This sensing system exhibits excellent sensitivity and selectivity toward Hg2+, and a detection limit as low as 0.23 nM is achieved. The practical use of this system for Hg2+ determination in lake water samples is also demonstrated successfully.

引用

页码：5351 / 5357

页数：7

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