Rapid synthesis of N, S co-doped carbon dots and their application for Fe3+ ion detection

  • Jian Zhang
  • Junbin Wang
  • Jinping Fu
  • Xucheng Fu
  • Wei Gan
  • Hequn Hao
Research Paper
  • 46 Downloads

Abstract

In this study, nitrogen and sulfur co-doped carbon dots (NSCDs) were fabricated by microwave-assisted one-pot synthesis using vitamin C and thiourea as precursors. The as-prepared NSCDs demonstrated excellent properties, including aqueous dispensability, strong fluorescence emission, excellent environmental stability, high selectivity, and sensitivity toward Fe3+ ions. The NSCD-based material can be used as a “turn off” fluorescent probe for detecting Fe3+ ions at a low detection limit (4.2 nM). In addition, the “turn off” and “turn on” of NSCD fluorescent probe could be modulated by adding Fe3+ and EDTA, indicating weak interaction between the Fe3+ ions and NSCDs.

Keywords

Carbon dots Fluorescent probe N,S-coped Ferric ion 

Notes

Acknowledgements

This work was supported by the Department of Education Anhui Province (No. gxyqZD2016245 and KJ2016A744), the National Natural Science Foundation of China (Grant No. 21377099), the Science Foundation of West Anhui University (No. WXZR1522, WXZR201713, and WXZR201729), and polymer material modification engineering technology center of West Anhui University.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Anhui Provincial Key Laboratory of Biomimetic Sensor and Detecting TechnologyWest Anhui UniversityLu’anPeople’s Republic of China
  2. 2.Shaoxing Quality and Technology Supervision and Inspection InstituteShaoxingPeople’s Republic of China

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