2020年8月20日 · Crosslinked β-cyclodextrin-containing (β-CD) polymer adsorbents have shown promising performances for sequestering PFAS. Recently, installing amino groups into the crosslinkers of a β-CD polymer network improved the binding of many anionic PFAS, including short-chain and branched derivatives.

Cyclodextrin Polymers with Nitrogen-Containing Tripodal Crosslinkers for Efficient PFAS Adsorption

2024年7月1日 · The Amine-CDP (tripodal amino groups crosslinked CDP) and AMD-CDP (tripodal amido groups crosslinked CDP) were synthesized by crosslinking β-CD with each of the two monomers.

2022年12月1日 · The polymer functionalized with tripodal crosslinkers containing amine groups has shown higher removal efficiency for PFOA/S than the polymer with amido groups. For 10 mg/L of amino-functionalized adsorbent used, the equilibrium removal of many per - and polyfluoroalkyl compounds (including PFOS/A) reached >96% (from 1 μg/L of contaminants ...

2024年12月8日 · The latest from our collaboration with the Dichtel group at Northwestern – cyclodextrin polymers with nitrogen-containing tripodal crosslinkers to evaluate the role of protonated amines in the adsorption of anionic PFASs. Conclusion: protonated functional groups are useful and important!

2019年5月8日 · We found that β-CD polymers cross-linked by perfluorinated aromatics with low degrees of phenolation are more favorable for PFAS adsorption. These findings provide insight into the mechanism of PFAS adsorption by β-CD-based polymers and will inspire modular designs of β-CD-based adsorbents to target other PFASs and micropollutants.

2020年8月20日 · Herein, β-CD-based adsorbents crosslinked with tripodal crosslinkers containing three amino or amido groups are prepared with comparable physicochemical properties to investigate the respective roles of the crosslinker and β-CD in binding affinity and capacity for anionic PFAS. β-CD polymers containing amines showed superior removal for ten anio...

Crosslinked β-cyclodextrin-containing (β-CD) polymer adsorbents have shown promising performances for sequestering PFAS. Recently, installing amino groups into the crosslinkers of a β-CD polymer network improved the binding of many anionic PFAS, including short-chain and branched derivatives.

2020年8月20日 · Rapid synthesis of multifunctional β-cyclodextrin nanospheres as alkali-responsive nanocarriers and selective antibiotic adsorbents. Novel hypercross-linked β-cyclodextrin nanospheres are rapidly synthesized with 4-amino-6-hydroxy-2-mercaptopyrimidine as a cross-linker within 5 min at a low temperature of 60 °C in the open water…

2020年8月20日 · Crosslinked β-cyclodextrin-containing (β-CD) polymer adsorbents have shown promising performances for sequestering PFAS. Re-cently, installing amino groups into the crosslinkers of a β-CD polymer...