Solvent-free synthesis of sulfur-and nitrogen-co-doped fluorescent carbon nanoparticles from glutathione for highly selective and sensitive detection of mercury(II) ions

被引：94

作者：

Wang, Weiping ^{[1
]}

Lu, Ya-Chun ^{[1
]}

Huang, Hong ^{[1
]}

Wang, Ai-Jun ^{[1
]}

Chen, Jian-Rong ^{[1
]}

Feng, Jiu-Ju ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Coll Geog Environm Sci, Coll Chem & Life Sci, Jinhua 321004, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2014年 / 202卷

基金：

中国国家自然科学基金;

关键词：

Solvent-free method; Fluorescence; Carbon nanoparticles; Glutathione; Mercury; GRAPHENE QUANTUM DOTS; LABEL-FREE DETECTION; POT HYDROTHERMAL SYNTHESIS; GREEN SYNTHESIS; NITRIDE DOTS; SENSING PLATFORM; POLYMER NANODOTS; FACILE SYNTHESIS; PROBES; ACID;

D O I：

10.1016/j.snb.2014.06.010

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this report, a simple, low-cost, green, and solvent-free method was developed to prepare sulfur-and nitrogen-co-doped carbon nanoparticles (SNCNs) by one-pot solid-phase thermal treatment of glutathione, with the nitrogen and sulfur contents of 16.1% and 2.0%, respectively. SNCNs show bright blue photoluminescence with a high quantum yield of 39.9%, which is significantly quenched by trace Hg2+ via the Hg2+-thiol interactions and extended for label-free fluorescent detection of Hg2+ with high selectivity and sensitivity, even with high concentrations of interference (i.e., other metal ions). The fluorescence intensity increases linearly with Hg2+ from 1.0 nM to 50.0 mu M, with the detection limit of 0.05 nM (S/N= 3). (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：741 / 747

页数：7

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