Enhancing the luminescence of carbon dots by doping nitrogen element and its application in the detection of Fe(III)
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- 作者：Quan Xu (1)
Jungang Zhao (1)
Yao Liu (1)
Peng Pu (1)
Xuesong Wang (1)
Yusheng Chen (2)
Chun Gao (2)
Jiarui Chen (3)
Hongjun Zhou (1)
1. Institute of New Energy ; State Key Laboratory of Heavy Oil Processing ; China University of Petroleum (Beijing) ; Beijing ; 102248 ; China
2. Department of Chemistry ; University of Akron ; Akron ; 44325 ; USA
3. Department of Chemical Engineering ; Xi鈥檃n Jiaotong University ; Xi鈥檃n ; 710049 ; Shaanxi ; China - 刊名：Journal of Materials Science
- 出版年：2015
- 出版时间：March 2015
- 年：2015
- 卷：50
- 期：6
- 页码：2571-2576
- 全文大小：2,115 KB
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- 刊物主题：Chemistry
Materials Science
Characterization and Evaluation Materials
Polymer Sciences
Continuum Mechanics and Mechanics of Materials
Crystallography
Mechanics - 出版者：Springer Netherlands
- ISSN：1573-4803
文摘
Carbon dots (CDs) attract great interests from scientists for their low toxicity and biocompatibility properties and their important applications in the fields of photocatalysts, batteries, bio-images and supercapacitors. Most strategies of making CDs contain several steps, which can be a time-consuming and costly procedure. In this study, nitrogen-doped CDs have been prepared by a one-step hydrothermal strategy with sodium citrate and ethylenediamine as precursors. It is found that fluorescence intensity of CDs is enhanced with the increased content of doped nitrogen, which implies that nitrogen-doped element plays an important role to improve the fluorescence intensity of CDs. Most importantly, those CDs yielded high selectivity of Fe3+, with good linearity, precision and accuracy. Hence, the as-prepared nitrogen-doped CDs could be used as probes for quantitative analysis of Fe3+ in environmental applications.