Jump to main content
Jump to site search

Issue 47, 2019
Previous Article Next Article

Red-emissive nitrogen doped carbon quantum dots for highly selective and sensitive fluorescence detection of the alachlor herbicide in soil samples

Author affiliations

Abstract

Red-emissive nitrogen doped carbon quantum dots (N-CQDs) were synthesized by a facile and efficient microwave-assisted hydrothermal treatment of p-phenylenediamine (p-PD), and then applied for the highly selective and sensitive fluorescence detection of the alachlor herbicide in soil samples. The synthesized N-CQDs exhibited strong red emission with a 27.6% quantum yield (QY) and high stability. Under the optimized experimental conditions, the as-prepared red-emissive N-CQDs were employed as a fluorescent probe to successfully detect trace alachlor, and their fluorescence presented a good linear decline with the increase of the alachlor concentration from 0.005 to 150 μM with a limit of detection of 0.2 nM. The N-CQDs as a fluorescent probe were used for the detection of alachlor in soil samples with satisfactory recoveries ranging from 86.6–114.3%, indicating that they were a promising fluorescent probe for highly selective and sensitive determination of alachlor.

Graphical abstract: Red-emissive nitrogen doped carbon quantum dots for highly selective and sensitive fluorescence detection of the alachlor herbicide in soil samples

Back to tab navigation

Supplementary files

Article information


Submitted
15 Aug 2019
Accepted
28 Oct 2019
First published
28 Oct 2019

New J. Chem., 2019,43, 18695-18701
Article type
Paper

Red-emissive nitrogen doped carbon quantum dots for highly selective and sensitive fluorescence detection of the alachlor herbicide in soil samples

F. Du, Z. Cheng, Z. Lai, G. Ruan and C. Zhao, New J. Chem., 2019, 43, 18695
DOI: 10.1039/C9NJ04232F

Social activity

Search articles by author

Spotlight

Advertisements