Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 21st October 2020 from 07:00 AM to 07:00 PM (BST).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 40, 2020
Previous Article Next Article

A luminescent terbium coordination polymer as a multifunctional water-stable sensor for detection of Pb2+ ions, PO43− ions, Cr2O72− ions, and some amino acids

Author affiliations

Abstract

A terbium coordination polymer based on 4-(pyridin-3-yloxy)-phthalic acid (H2ppda) and 1,4-naphthalenedicarboxylic acid (H2nbdc), namely, [Tb(ppda)(npdc)0.5(H2O)2]n (1), features a two-dimensional layered structure and exhibits stable luminescence in the pH range of 2–12 in aqueous solution. It was found that compound 1 acted as a luminescent sensor for Pb2+ ions, PO43− ions, and Cr2O72− ions among various anions with excellent performance. The detection studies of amino acids showed that compound 1 could also be a multifunctional probe with high selectivity and sensitivity that discerned tyrosine (Tyr) and tryptophan (Trp) with the characteristic emission of Tb3+ ions and ligand luminescence in aqueous solution, respectively. It is the first lanthanide-based coordination polymer fluorescence probe for synchronous determination of Tyr and Trp in the presence of other amino acids, and the limits of detection for Tyr and Trp are both in the 10−5 M order of magnitude. Furthermore, the luminescence sensing mechanisms for different analytes were elaborated, respectively.

Graphical abstract: A luminescent terbium coordination polymer as a multifunctional water-stable sensor for detection of Pb2+ ions, PO43− ions, Cr2O72− ions, and some amino acids

Back to tab navigation

Supplementary files

Article information


Submitted
30 Jul 2020
Accepted
03 Sep 2020
First published
03 Sep 2020

CrystEngComm, 2020,22, 6727-6737
Article type
Paper

A luminescent terbium coordination polymer as a multifunctional water-stable sensor for detection of Pb2+ ions, PO43− ions, Cr2O72− ions, and some amino acids

Z. Li, Z. Zhan and M. Hu, CrystEngComm, 2020, 22, 6727
DOI: 10.1039/D0CE01101K

Social activity

Search articles by author

Spotlight

Advertisements