Engineered Polymeric Microspheres with Synergistic Hydrogen‐Bonding Nanotraps and Multisite Adsorption for Ultrafast Herbicide Decontamination

Angewandte Chemie International Edition, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

The ultrafast removal of trace herbicides like paraquat (PQ) and diquat (DQ) from water is urgent yet challenging due to their highwater stability strong binding properties. Here, efficient PQ DQ based on hydrogen-bonding nanotraps dominant multi-site adsorption were developed. Two crosslinked polymeric microspheres, βCD-PF γCD-PF, synthesized cyclodextrins (CDs) hexafluorocyclotriphosphazene (HFP). γCD-PF microsphere with sufficient hydrogen bonding the pore surface prompts kinetics constants up 127.09 192.64 g mg-1 min-1, achieving 99% efficiency for within 5 s. exhibits exceptional selectivity over larger competing dyes. Importantly, (1 ppm) can be effectively treated achieve a concentration far below U.S. EPA standard (0.003 30 seconds. driven by mechanism: electrostatic π-π interactions HFP promote adsorbate accumulation CD surface, while high-density in enhance bond strength, enabling rapid capture. This work provides valuable strategy designing adsorbents effective herbicide water.

Язык: Английский

Engineered Polymeric Microspheres with Synergistic Hydrogen‐Bonding Nanotraps and Multisite Adsorption for Ultrafast Herbicide Decontamination

Angewandte Chemie, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

Abstract The ultrafast removal of trace herbicides like paraquat (PQ) and diquat (DQ) from water is urgent yet challenging due to their highwater stability strong‐binding properties. Here, efficient PQ DQ based on hydrogen‐bonding nanotraps dominant multisite adsorption were developed. Two crosslinked polymeric microspheres, β CD‐PF γ CD‐PF, synthesized cyclodextrins (CDs) hexafluorocyclotriphosphazene (HFP). microsphere with sufficient the pore surface prompts kinetics constants up 127.09 192.64 g mg −1 min , achieving 99% efficiency for within 5 s. exhibits exceptional selectivity over larger competing dyes. Importantly, (1 ppm) can be effectively treated achieve a concentration far below US Environmental Protection Agency (EPA) standard (0.003 30 driven by mechanism: electrostatic π–π interactions HFP promote adsorbate accumulation CD surface, while high‐density in enhance hydrogen bond strength, enabling rapid capture. This work provides valuable strategy designing adsorbents effective herbicide water.

Язык: Английский

Diamine-Functionalized Zirconium Metal-Organic Cage ZrT-1-(NH2)2: A Ratiometric Fluorescent Probe for the Rapid and Sensitive Detection of Malachite Green

Journal of Molecular Structure, Год журнала: 2024, Номер 1323, С. 140726 - 140726

Опубликована: Ноя. 14, 2024

Язык: Английский