A cucurbit[6]uril based supramolecular assembly for the detection and removal of dyes and antibiotics from water

Guo, Jing; Han, Xiaodong; Wang, Shuo; Liu, Mei; Liu, Lihui; Wang, Peng

doi:10.1039/d2ay00658h

Cited by 6 publications

(1 citation statement)

References 35 publications

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“…With the progress of modern society and the rapid development of industry, the common pollutants in water such as heavy metal ions, − organic matter, − pesticides, − and antibiotics − pose a certain threat to human health. Water pollution has gradually become an intractable problem faced by people in today’s society, so the detection of pollutants in water is particularly necessary.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Fluorescence Sensing for Nitro Explosives and Pesticides of Two Cd-Coordination Polymers

Cui,

Liu,

et al. 2023

ACS Omega

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Two cadmium coordination polymers (CPs), {[Cd(zgt)(2,2′-bipy)(H2O)]·H2O} n (1) and {[Cd(zgt)(BPP)(H2O)]·H2O} n (2) (H2zgt = 5-methoxyresorcinic acid, 2,2′-bipy = 2,2′-bipyridine, and BPP = 1,3-bis(4-pyridyl)propane), were prepared by the hydrothermal method. The structures of CPs 1–2 were characterized by IR, TGA, X-ray powder diffraction, and elemental analysis. The single-crystal structure analysis shows that CP 1 is a typical 1D chain structure and CP 2 belongs to a 2D layered structure. Based on the excellent luminescence properties of CP 1 and 2, fluorescence sensing experiments were carried out for explosives and pesticides. The results of the explosion sensing experiment showed that CP 1 and 2 had an excellent fluorescence quenching effect on PNBA (p-nitrobenzoic acid) and TNP (2,4,6-trinitrophenol), respectively, and the detection limits were 3.28 and 11.4 nM, respectively. Interestingly, both CP 1 and 2 showed good fluorescence quenching against the pesticide fluridine (Flu), and CP 1 had a lower detection limit and was more sensitive. In addition, the fluorescence quenching mechanism was discussed in detail by the UV absorption spectrum and density functional theory. In order to explore its practical application, the content of Flu in water samples was detected by a labeling recovery method.

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