Fluorescent carbon dots: facile synthesis at room temperature and its application for Fe2+ sensing

被引：47
作者：
Xiao, Sai Jin [1 ,2 ]
Chu, Zhao Jun [1 ]
Zuo, Jun [1 ]
Zhao, Xiao Jing [1 ]
Huang, Cheng Zhi [1 ,3 ]
Zhang, Li [4 ]
机构：
[1] East China Univ Technol, Jiangxi Key Lab Mass Spectrometry & Instrumentat, Nanchang 330013, Jiangxi, Peoples R China
[2] East China Univ Technol, Sch Chem Biol & Mat Sci, Nanchang 330013, Jiangxi, Peoples R China
[3] Southwest Univ, Coll Pharmaceut Sci, Chongqing 400715, Peoples R China
[4] Nanchang Univ, Coll Chem, Nanchang 330031, Jiangxi, Peoples R China
来源：
JOURNAL OF NANOPARTICLE RESEARCH | 2017年 / 19卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Carbon dots; Room temperature; Fe2+ determination; Environmental effects; GRAPHENE QUANTUM DOTS; ONE-STEP SYNTHESIS; GREEN SYNTHESIS; BIOLOGICAL APPLICATIONS; SILICON NANOPARTICLES; PHOTOLUMINESCENCE; NANODOTS; AGGREGATION; PROBES; IONS;
D O I：
10.1007/s11051-016-3698-1
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new route for one-pot preparation of carbon dots (CDs) was developed at room temperature using PEG400 as both the carbon source and passitive agent. The new method possesses the advantages of facile, rapid, energy-saving, without any external stimulus and environment friendly. By changing the content of NaOH, the PEG400-CDs with blue-emitting, yellow-emitting, orange red-emitting and red-emitting were obtained, and the formation mechanism were carefully investigated. In addition, a sensitive fluorescence sensor were developed for Fe2+ detection based on PEG400-CDs since the fluorescence of PEG400-CDs could be enhanced by Fe2+. It was found that there is a good linear relationship between the enhanced fluorescence and Fe2+ concentration in the range of 0.5 to 2.0 mu mol.L-1 with the detection limit of 6.0 x 10(-8) mol.L-1, and Fe2+ in water samples was also determined with high accuracy and repeatability.
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页数：8
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