Issue 12, 2024

Two dye-encapsulated triple-emitting naphthalene-based Zr-MOFs for tunable white-light emission and dual mode detection of inorganic ions

Abstract

A series of novel dual-dye-loaded tunable triple-emission colorimetric fluorescent BPEA&Rh6G@DUT-52 (B&R@D) probes was prepared using an in situ encapsulation method, in which the B&R@D6 probe achieved white fluorescence emission with CIE chromaticity coordinates of (0.33, 0.32) and was used for the quenching and colorimetric detection of Fe3+ and Cr2O72− and the colorimetric detection of NO2 and IO3. When analytes come into contact with the surface of B&R@D6, resonance energy transfer or electron transfer occurs, resulting in relative changes in the three emission peaks. Good linear relationships were established between the fluorescence intensities of the B&R@D6 probe and the concentrations of 0.025–0.5 mM (Fe3+) and 0.005–0.1 mM (Cr2O72−) with detection limits of 2.8 μM and 18.5 nM, respectively. B&R@D6 was further applied in the detection of Fe3+ and Cr2O72− in three actual water samples with recoveries ranging from 101.5% to 114.1% and 86.8% to 100.3%, respectively, showing the practical potential of this method. In addition, a B&R@D6 portable fluorescent test paper was constructed for the in situ dual-mode detection of Fe3+, Cr2O72−, NO2 and IO3. This work demonstrates the detection capabilities of triple-emitting white fluorescent probes toward ions in terms of multi-target and multi-detection modes.

Graphical abstract: Two dye-encapsulated triple-emitting naphthalene-based Zr-MOFs for tunable white-light emission and dual mode detection of inorganic ions

Supplementary files

Article information

Article type
Paper
Submitted
01 Dec 2023
Accepted
17 Feb 2024
First published
20 Feb 2024

J. Mater. Chem. C, 2024,12, 4316-4325

Two dye-encapsulated triple-emitting naphthalene-based Zr-MOFs for tunable white-light emission and dual mode detection of inorganic ions

Y. Chen, G. Yang, X. Liu, D. Chen, H. Xing and L. Yang, J. Mater. Chem. C, 2024, 12, 4316 DOI: 10.1039/D3TC04432G

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