文献类型： 外文期刊
作者： He, Yanfei 1 ; Liang, Lina 1 ; Liu, Qinghao 1 ; Guo, Jinchun 2 ; Liang, Dong 1 ; Liu, Hongyan 3 ;
作者机构： 1.North Univ China, Sch Chem Engn & Technol, Taiyuan 030051, Shanxi, Peoples R China
2.North Univ China, Sch Environm & Safety Engn, Taiyuan 030051, Shanxi, Peoples R China
3.Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou 450002, Henan, Peoples R China
期刊名称：RSC ADVANCES （ 影响因子：3.361； 五年影响因子：3.39 ）
ISSN： 2046-2069
年卷期： 2017 年 7 卷 88 期
页码：
收录情况： SCI
摘要： To prepare nitrogen doped carbon dots (NCDs) with excellent luminescence efficiency, a facile hydrothermal method was developed using cabbage juice as the carbon source and poly ethylene polyamine (PP) as the nitrogen source. Then, as-prepared NCDs were grafted onto calcium alginate to produce calcium alginate film (CA-NCDs), and the CA-NCDs were used as a fluorescent probe. The significant quenching effect of Fe3+ was established. The ratio of fluorescence intensity (F/F-0) of the CA-NCDs had a linear relationship with the concentration of Fe3+ within the range of 0 to 48 mM (R-2 was 0.9947) and the detection limit was 1.4 nM. In addition, the recovery of spiked samples ranged from 98.6% to 103.1%. Most importantly, the amino-functionalized CA-NCD fluorescent probe can be successfully applied for the detection of trace Fe3+ in water samples.
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