Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



IL@CQD catalyzed active ester rearrangement for the detection and removal of cyanide ions

Author affiliations

Abstract

Carbon Quantum Dots (CQDs) have been extensively employed in various fields of science such as sensing, catalysis, and drug delivery. In this work, ionic liquid coated CQDs (IL@CQDs) have been used as catalysts for the rearrangement of a 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) amide coupling intermediate. The rearranged product was confirmed by single crystal structure analysis and it was processed into organic nanoparticles (ONPs). An optical detection method was used to scrutinize the anion sensing properties. The ONPs were found to be sensitive and selective for the recognition of highly toxic cyanide ions through enhancement in the fluorescence intensity. The cyanide ion co-ordinates with the –NH groups of the product and restricts the rotation of molecules around the single bond. The ONPs coated over silica-beads were also showing CN recognition in the solid state. The detection limit for CN sensing was found to be 3.8 nM, and real sample analysis depicts more than 90% accuracy in detection.

Graphical abstract: IL@CQD catalyzed active ester rearrangement for the detection and removal of cyanide ions

Back to tab navigation

Supplementary files

Article information


Submitted
19 Feb 2020
Accepted
28 Mar 2020
First published
31 Mar 2020

Analyst, 2020, Advance Article
Article type
Paper

IL@CQD catalyzed active ester rearrangement for the detection and removal of cyanide ions

M. Chaudhary, M. Verma, P. Raj, K. C. Jena and N. Singh, Analyst, 2020, Advance Article , DOI: 10.1039/D0AN00361A

Social activity

Search articles by author

Spotlight

Advertisements