Issue 61, 2018, Issue in Progress

Specific colorimetric detection of Fe3+ ions in aqueous solution by squaraine-based chemosensor

Abstract

A new squaraine based chemosensor TSQ was developed for colorimetric detection of Fe3+ ions. A thymine moiety in TSQ was constructed to act as an ion acceptor. The sensor displayed an instant colorimetric response specific to Fe3+ over the other metal ions in 20% AcOH–H2O solution. The limit of detection was much lower than that of the environmental protection agency guideline (5.37 μM) in drinking water. A 1 : 1 binding between TSQ and Fe3+ ion was evidenced by Job's plot measurement, ESI-MS and Fourier transform infrared (IR) measurements. Moreover, the proposed sensing mechanism of the receptor towards Fe3+ was strongly supported by DFT calculation. Finally, the sensor has proven to be suitable in real sample applications.

Graphical abstract: Specific colorimetric detection of Fe3+ ions in aqueous solution by squaraine-based chemosensor

Supplementary files

Article information

Article type
Paper
Submitted
03 Sep 2018
Accepted
02 Oct 2018
First published
11 Oct 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 34860-34866

Specific colorimetric detection of Fe3+ ions in aqueous solution by squaraine-based chemosensor

X. Liu, N. Li, M. Xu, J. Wang, C. Jiang, G. Song and Y. Wang, RSC Adv., 2018, 8, 34860 DOI: 10.1039/C8RA07345G

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, 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 commercial 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