Novel pillar[n]arenes magnetic nanoparticles: Preparation and application in quantitative analysis of trace perfluorinated compounds from aqueous samples

Liu, Ting; Ma, Chunfeng; Hu, Zheng; Huang, Yinghong; Wang, Xian

doi:10.1016/j.aca.2024.343067

Analytica Chimica Acta

2024

DOI: 10.1016/j.aca.2024.343067

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Novel pillar[n]arenes magnetic nanoparticles: Preparation and application in quantitative analysis of trace perfluorinated compounds from aqueous samples

Ting Liu,

Chunfeng Ma,

Zheng Hu

et al.

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Porous Pillar[5]arene-Based Polymers for Efficient Removal of Perfluorinated Pollutants from Aqueous Phases

Lin,

Zhang,

Fang

et al. 2024

ACS Appl. Polym. Mater.

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Per-and polyfluorinated alkyl substances (PFAS) are deemed as a class of persistent pollutants with chemical toxicities, which cause severe contamination to air, soil, and water resources. Advanced depuration materials with effective adsorption potency are urgently needed to address these emerging environmental and health issues. Herein, porous pillar[5]arene-based polymers (P-P5APs) were easily prepared via a one-step crosslinking reaction between perhydroxylated pillar[5]arene and decafluorobiphenyl, as a supramolecular adsorbent for PFAS. A water-soluble pillar[5]arene derivative was chosen as the model host to prove that such a macrocycle could encapsulate perfluorobutanesulfonic acid with an association constant of 10 5 M −1 . Nitrogen adsorption tests demonstrated that the resultant porous material containing the pillar[5]arene scaffold possessed a satisfactory surface area (S BET = 539.68 m 2 •g −1 ) and pore diameter (3.82 nm). Compared with commercially available activated carbon, P-P5APs exhibited superior adsorption efficiency toward eight representative PFAS from the aqueous phase, mainly ascribed to nonspecific adsorption by the pore structure of the cross-linked material coupled with multiple intermolecular binding sites of the macrocyclic scaffold. Moreover, this supramolecular absorbent was recyclable and could be reused 5 times with no obvious loss of performance.

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Porous Pillar[5]arene-Based Polymers for Efficient Removal of Perfluorinated Pollutants from Aqueous Phases

Lin,

Zhang,

Fang

et al. 2024

ACS Appl. Polym. Mater.

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show abstract

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Novel pillar[n]arenes magnetic nanoparticles: Preparation and application in quantitative analysis of trace perfluorinated compounds from aqueous samples

Cited by 1 publication

References 60 publications

Porous Pillar[5]arene-Based Polymers for Efficient Removal of Perfluorinated Pollutants from Aqueous Phases

Porous Pillar[5]arene-Based Polymers for Efficient Removal of Perfluorinated Pollutants from Aqueous Phases

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