Issue 60, 2019

Two-dimensional Cd(ii) coordination polymer encapsulated by Tb3+ as a reversible luminescent probe for Fe3+

Abstract

A two-dimensional luminescent cadmium(II) coordination polymer, [Cd(modbc)2]n (Cd-P); modbc = 2-methyl-6-oxygen-1,6-dihydro-3,4′-bipyridine-5-carbonitrile, was successfully synthesized by a solvothermal reaction and fully characterized. Cd-P exhibited excellent luminescence emission, and detected Cu2+, Co2+, Fe2+, Hg2+, Ni2+ and Fe3+ ions with high sensitivity and showed good anti-interference performance. After encapsulation of Tb3+ ions in Cd-P, the as-obtained fluorescent functionalized Tb3+@Cd-P maintained distinct chemical stabilities in different pHs and metal salt solutions. Subsequently, we explored the potential application of Tb3+@Cd-P as a probe for Fe3+ ions. A new and convenient method for individual identification of Fe3+ ions by the combination of Cd-P and Tb3+@Cd-P was successfully established. A possible sensing mechanism is discussed in detail.

Graphical abstract: Two-dimensional Cd(ii) coordination polymer encapsulated by Tb3+ as a reversible luminescent probe for Fe3+

Supplementary files

Article information

Article type
Paper
Submitted
23 Aug 2019
Accepted
22 Oct 2019
First published
29 Oct 2019
This article is Open Access
Creative Commons BY license

RSC Adv., 2019,9, 34949-34957

Two-dimensional Cd(II) coordination polymer encapsulated by Tb3+ as a reversible luminescent probe for Fe3+

Y. Wu, M. Lin, D. Liu, M. Liu and J. Qian, RSC Adv., 2019, 9, 34949 DOI: 10.1039/C9RA06639J

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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