Issue 46, 2021

A metal–organic framework featuring highly sensitive fluorescence sensing for Al3+ ions

Abstract

High sensitivity and selectivity for the detection of metal ions are very important to protect human health. Fluorescent metal–organic frameworks (MOFs) as new sensing materials have attracted more and more attention. Herein, a pillar-layered fluorescent metal–organic framework, {[H2N(CH3)2]2[Cd5(TCPE)3(4,4′-bpy)2(MeOH)2(H2O)4]}n (NKM-102) (H4TCPE = tetrakis(4-carboxyphenyl)ethylene acids, 4,4′-bpy = 4,4′-bipyridine), has been synthesized through utilization of the H4TCPE ligand with typical AIE characteristics. NKM-102 exhibits excellent fluorescence emission performance and detects Al3+ ions with high selectivity through turn-off effect and emission color change. Moreover, the detection limit of NKM-102 can reach 158 ppb, which is lower than the maximum limit of Al3+ ions in drinking water recommended by the United States Environmental Protection Agency (200 ppb). Therefore, the NKM-102 probe is a prominent candidate for the visual detection of Al3+ ions with high sensitivity and selectivity.

Graphical abstract: A metal–organic framework featuring highly sensitive fluorescence sensing for Al3+ ions

Supplementary files

Article information

Article type
Paper
Submitted
19 Там. 2021
Accepted
08 Қаз. 2021
First published
08 Қаз. 2021

CrystEngComm, 2021,23, 8087-8092

A metal–organic framework featuring highly sensitive fluorescence sensing for Al3+ ions

Y. Qiao, Z. Li, M. Yu, Z. Chang and X. Bu, CrystEngComm, 2021, 23, 8087 DOI: 10.1039/D1CE01115D

To request permission to reproduce material from this article, 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 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