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

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([C 4 mim][Cys]) ionic liquid. The as-prepared N/S-CDs exhibited a good solubili...

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Bibliographic Details
Published in:Chemical research in Chinese universities 2015-10, Vol.31 (5), p.730-735
Main Authors: Xu, Panpan, Wang, Chunfeng, Sun, Dong, Chen, Yujuan, Zhuo, Kelei
Format: Article
Language:English
Subjects:
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Inorganic Chemistry
Organic Chemistry
Physical Chemistry
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Summary: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([C 4 mim][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 Cu 2+ in real water samples with satisfactory recovery.
ISSN:1005-9040
2210-3171
DOI:10.1007/s40242-015-5118-y