Issue 23, 2022

An anthracene-based microporous metal–organic framework for adsorbing CO2 and detecting TNP sensitivity

Abstract

A new anthracene-based metal–organic framework (MOF, named as CUST-607), [Cd3(H2O)(H3L)2(dia)2]·4DMA·10H2O (dia = 9,10-bis(1H-imidazol-1-yl)anthracene, H3L = 4,4′,4′′-[1,3,5-benzenetriyltris(carbonylimino)]tris(benzoate)), was synthesized by a solvothermal method. Through single X-ray diffraction analysis, CUST-607 displays a three-dimensional multihole network with the triclinic space group of P[1 with combining macron] and (3,3,4,5)-connected nodes. Gas adsorption and desorption experiments show that CUST-607 has a microporous structure with a large surface area of 702.15 m2 g−1. CUST-607 also exhibits selective and strong adsorption of CO2 with a 40 kJ mol−1Qst value. Luminescence sensing experiments show that CUST-607 has a high selectivity for detecting nitroaromatic explosives, particularly for 2,4,6-trinitrophenol. The quenching constant Ksv is 1.43 × 105 M−1, higher than that of most reported MOFs. In addition, the CUST-607 fluorescence sensor exhibits high recyclability in detecting nitrobenzene and 2,4,6-trinitrophenol and can be used as potential sensors in practical applications.

Graphical abstract: An anthracene-based microporous metal–organic framework for adsorbing CO2 and detecting TNP sensitivity

Supplementary files

Article information

Article type
Paper
Submitted
25 Apr 2022
Accepted
16 May 2022
First published
16 May 2022

New J. Chem., 2022,46, 11377-11381

An anthracene-based microporous metal–organic framework for adsorbing CO2 and detecting TNP sensitivity

Q. An, S. Bao, X. Li, J. Sun and Z. Su, New J. Chem., 2022, 46, 11377 DOI: 10.1039/D2NJ02015G

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