脉冲电解与定制电位调制†在水成膜泡沫（AFFF）中完全水除氟PFAS

IF 4.6 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

RSC Advances Pub Date : 2025-03-17 DOI:10.1039/D4RA08214A

Ziyi Meng, Teona Taseska, Madeleine K. Wilsey and Astrid M. Müller

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引用次数: 0

摘要

全氟烷基和多氟烷基物质（PFAS）是有害和持久的全球水污染物。AFFF是一种用于消防的泡沫形成的水性混合物，是全氟化合物污染的主要来源，很难去氟化。我们报道了用非贵重材料在AFFF中完全光辅助电催化PFAS脱氟。含盐量高的LiOH电解质阻止了泡沫的产生。定制电位调制的脉冲电解平衡了阳极除氟和未反应阴离子PFAS的吸附。我们的研究结果证明了脉冲电催化在AFFF中除氟持久性PFAS的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Complete aqueous defluorination of PFAS in aqueous film-forming foam (AFFF) by pulsed electrolysis with tailored potential modulation†

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Complete aqueous defluorination of PFAS in aqueous film-forming foam (AFFF) by pulsed electrolysis with tailored potential modulation†

Per- and polyfluoroalkyl substances (PFAS) are harmful and persistent global water contaminants. AFFF, a foam-forming aqueous mixture used for firefighting, is a major source of PFAS pollution and challenging to defluorinate. We report the complete photo-assisted electrocatalytic defluorination of PFAS in AFFF with nonprecious materials. The high salt content in the aqueous LiOH electrolyte prevented foaming. Pulsed electrolysis with tailored potential modulation balanced anodic fluoride removal and the adsorption of unreacted anionic PFAS. Our findings demonstrate the effectiveness of pulsed electrocatalysis in defluorinating persistent PFAS in AFFF.

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来源期刊

RSC Advances chemical sciences-

CiteScore

7.50

自引率

2.60%

发文量

3116

审稿时长

1.6 months

期刊介绍： An international, peer-reviewed journal covering all of the chemical sciences, including multidisciplinary and emerging areas. RSC Advances is a gold open access journal allowing researchers free access to research articles, and offering an affordable open access publishing option for authors around the world.