Issue 4, 2021

2D luminescent metal–organic framework: efficient and highly selective detection of 2,4,6-trinitrophenol at the ppb level

Abstract

A unique 2D metal–organic framework (MOF), formulated as [Cd(L)0.5(H2L1)·DMF] (CUST-531) (L: 9,10-bis(N-benzimidazolyl)-anthracene; H2L1: 5-aminoisophthalic acid), has been successfully prepared by a hybrid ligand strategy based on solvothermal synthesis conditions. CUST-531 was characterized by single X-ray diffraction, PXRD (powder X-ray diffraction), TGA (thermogravimetric analysis) and IR (infrared spectrophotometer). CUST-531 contains 1D chains based on binuclear Cd clusters, which are further connected to establish a 4-c 2D layered network by the bridging ligands L. The fluorescence sensing experiments show that the strong emission properties of CUST-531 could be used to sensitively and rapidly detect 2,4,6-trinitrophenol (TNP) at the ppb level. The fluorescence quenching mechanisms have been systematically studied through theoretical analysis and experiments, which may be the cause of the turn-off of the fluorescence signal when CUST-531 detected TNP.

Graphical abstract: 2D luminescent metal–organic framework: efficient and highly selective detection of 2,4,6-trinitrophenol at the ppb level

Supplementary files

Article information

Article type
Paper
Submitted
30 Oct 2020
Accepted
02 Dec 2020
First published
08 Dec 2020

CrystEngComm, 2021,23, 929-934

2D luminescent metal–organic framework: efficient and highly selective detection of 2,4,6-trinitrophenol at the ppb level

M. Y. Fan, P. Fu, J. Li, Z. M. Su, X. Li, Q. Q. Pan and X. L. Hu, CrystEngComm, 2021, 23, 929 DOI: 10.1039/D0CE01581D

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