Polyamine-functionalized carbon nanodots: a novel chemiluminescence probe for selective detection of iron(III) ions

被引：41

作者：

Zhao, Lixia ^{[1
]}

Geng, Fanglan ^{[1
]}

Di, Fan ^{[1
]}

Guo, Liang-Hong ^{[1
]}

Wan, Bin ^{[1
]}

Yang, Yu ^{[1
]}

Zhang, Hui ^{[1
]}

Sun, Guozhu ^{[2
]}

机构：

[1] Chinese Acad Sci, Res Ctr Eco Environm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China

[2] Hebei Med Univ, Hosp 2, Dept Neurosurg, Shijiazhuang 050000, Peoples R China

来源：

RSC ADVANCES | 2014年 / 4卷 / 86期

关键词：

QUANTUM DOTS; WATER; PHOTOLUMINESCENCE; ENHANCEMENT; SYSTEM;

D O I：

10.1039/c4ra08071h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We firstly studied the chemiluminescence behavior of branched poly(ethylenimine)-functionalized carbon dots (BPEI-CDs). The results demonstrated that BPEI-CDs can be used as a novel chemiluminescence probe in alkaline solution for rapid detection of iron(III) ions with high sensitivity and selectivity. A possible CL mechanism was studied by UV-Vis, fluorescence, CL, FTIR, XPS and EPR spectroscopy. Iron(III) could be selectively captured by the surface functional groups of BPEI and injected holes into the carbon dots which resulted in a great improvement of the BPEI-CDs' CL signal in alkaline solution. The work sheds new light on the characteristics and further application of functionalized carbon dots.

引用

页码：45768 / 45771

页数：4

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