Green Synthesis of Fluorescent Carbon Quantum Dots for Detection of Hg2+

被引：73

作者：

Xu Yue ^{[1
]}

Tang Chun-Jing ^{[1
]}

Huang Hong ^{[2
]}

Sun Chao-Qun ^{[1
]}

Zhang Ya-Kun ^{[1
]}

Ye Qun-Feng ^{[1
]}

Wang Ai-Jun ^{[1
]}

机构：

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

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

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2014年 / 42卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Carbon quantum dots; Green synthesis; Apple juice; Hg2+; NITRIDE DOTS; MERCURY ION; NANOPARTICLES; NANODOTS; FACILE; PROBES; RICH;

D O I：

10.1016/S1872-2040(14)60765-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Fluorescent carbon quantum dots (CQDs) were synthesized by one-step hydrothermal treatment with apple juice as raw material. The result indicated that the fluorescence could be quenched by Hg2+ with high specificity. Based on this phenomenon, a selective and sensitive sensor was constructed for the detection of Hg2+ in phosphate solutions (pH 7.0). The fluorescence intensity showed linear responses with Hg2+ concentration ranging from 5.0 to 100.0 nM and 1.0 to 50.0 mu M, with the detection limit of 2.3 nM (S/N = 3). The as-fabricated sensor was further extended for the determination of Hg2+ in real water samples.

引用

页码：1252 / 1258

页数：7

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