Issue 17, 2021

Electrochemiluminescence of water-dispersed nitrogen and sulfur doped carbon dots synthesized from amino acids

Abstract

A facile one-pot hydrothermal approach for synthesizing water-dispersed nitrogen and sulfur doped carbon dots (NS-CDs) with high luminescence quantum yield was explored, using cysteine and tryptophan as precursors. The NS-CDs were characterized by means of FT-IR spectroscopy, XRD, TEM, etc. It was found that the absolute photoluminescence quantum yield (QY) of the NS-CDs determined with an integrating sphere can reach up to 73%, with an average decay time of 17.06 ns. Electrochemiluminescence (ECL) behaviors and mechanisms of the NS-CDs/K2S2O8 coreactant system were investigated. When the working electrode was modified with the prepared NS-CDs, the ECL efficiency of the NS-CDs with K2S2O8 was 24%, relative to Ru(bpy)3Cl2/K2S2O8. This work shows great potential for the NS-CDs to be used in bioanalytical applications.

Graphical abstract: Electrochemiluminescence of water-dispersed nitrogen and sulfur doped carbon dots synthesized from amino acids

Supplementary files

Article information

Article type
Paper
Submitted
05 Jun 2021
Accepted
08 Jul 2021
First published
08 Jul 2021

Analyst, 2021,146, 5287-5293

Electrochemiluminescence of water-dispersed nitrogen and sulfur doped carbon dots synthesized from amino acids

Y. Chen, J. Lin, R. Zhang, S. He, Z. Ding and L. Ding, Analyst, 2021, 146, 5287 DOI: 10.1039/D1AN00991E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements