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Ionic liquid as a precursor to synthesize nitrogen- and sulfur-co-doped carbon dots for detection of copper(II) ions

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Abstract

A facile approach was reported for the synthesis of nitrogen- and sulfur-co-doped carbon dots(N/S-CDs) by the sulfuric acid carbonization of 1-butyl-3-methylimidazolium 2-amino-3-mercaptopropionic acid(L-cysteine) salt([C4mim][Cys]) ionic liquid. The as-prepared N/S-CDs exhibited a good solubility, excitation-dependent emission behavior, and high resistance to photobleaching. Furthermore, the N/S-CDs were employed as a fluorescent probe for detecting Cu2+ in real water samples with satisfactory recovery.

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Authors and Affiliations

  1. Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China

    Panpan Xu, Chunfeng Wang, Dong Sun, Yujuan Chen & Kelei Zhuo

Authors
  1. Panpan Xu
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  2. Chunfeng Wang
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  3. Dong Sun
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  4. Yujuan Chen
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  5. Kelei Zhuo
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Corresponding author

Correspondence to Kelei Zhuo.

Additional information

Supported by the National Natural Science Foundation of China(Nos.20973055, 21173070) and the Plan for Scientific Innovation Talent of Henan Province of China(No.124200510014).

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Xu, P., Wang, C., Sun, D. et al. Ionic liquid as a precursor to synthesize nitrogen- and sulfur-co-doped carbon dots for detection of copper(II) ions. Chem. Res. Chin. Univ. 31, 730–735 (2015). https://doi.org/10.1007/s40242-015-5118-y

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  • DOI: https://doi.org/10.1007/s40242-015-5118-y

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