Hybrid capacitive deionization system for short-chain perfluoroalkyl substances (PFAS) removal using activated carbon composite and Nafion-coated prussian blue electrodes

IF 6.2 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Carbon Letters Pub Date : 2026-03-25 DOI:10.1007/s42823-026-01054-1

Harang Park, Byunghyun Kim, Hongsik Yoon, Wook Ahn, Young-Woo Lee, Younghyun Cho, Jaehan Lee

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引用次数: 0

Abstract

Perfluoroalkyl substances (PFAS), which are used in various industries due to their excellent thermal stability and chemical durability, have strong C-F bonds that are not easily degraded over time, causing them to accumulate in the human body and in the environment. Therefore, the development of PFAS treatment technology is emerging as an urgent issue, and PFAS regulations are being strengthened internationally. This study proposes an optimized hybrid capacitive deionization (HCDI) system using activated carbon composite and Nafion-coated Prussian blue (PB) electrodes for the effective removal of PFAS with short fluoroalkyl chains, such as perfluorobutane sulfonic acid (PFBS). It was found that the HCDI system exhibited higher deionization capacities (26.9 mg/g and 0.60 mg/cm²), corresponding to increases of 11.6% and 39.5% on a gravimetric and areal basis, respectively, compared with the ACDI system (24.1 mg/g and 0.43 mg/cm²). Moreover, HCDI consumed less energy (0.44 Wh/g) under the same conditions. This study aims to contribute to the development of sustainable water treatment technology for PFAS removal and the design of a breakthrough HCDI system using a Nafion-coated PB electrode.

Graphical abstract

The alternative text for this image may have been generated using AI.

查看原文本刊更多论文

混合电容去离子系统去除短链全氟烷基物质（PFAS），使用活性炭复合材料和nafion涂层普鲁士蓝电极

全氟烷基物质（PFAS）由于其优异的热稳定性和化学耐久性而被用于各种工业，具有很强的C-F键，不易随着时间的推移而降解，导致它们在人体和环境中积累。因此，发展PFAS处理技术已成为当务之急，国际上对PFAS的监管也在不断加强。本研究提出了一种优化的混合电容去离子（HCDI）系统，该系统使用活性炭复合材料和nafion涂层普鲁士蓝（PB）电极，可有效去除具有短氟烷基链的PFAS，如全氟丁烷磺酸（PFBS）。结果表明，与ACDI体系（24.1 mg/g和0.43 mg/cm²）相比，HCDI体系表现出更高的去离子能力（26.9 mg/g和0.60 mg/cm²），分别提高了11.6%和39.5%。在相同条件下，HCDI的能耗更低（0.44 Wh/g）。本研究旨在促进可持续水处理技术的发展，以去除PFAS，并设计一种突破性的使用nation涂层PB电极的HCDI系统。图形抽象此图像的替代文本可能是使用AI生成的。

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来源期刊

Carbon Letters CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

7.30

自引率

20.00%

发文量

118

期刊介绍： Carbon Letters aims to be a comprehensive journal with complete coverage of carbon materials and carbon-rich molecules. These materials range from, but are not limited to, diamond and graphite through chars, semicokes, mesophase substances, carbon fibers, carbon nanotubes, graphenes, carbon blacks, activated carbons, pyrolytic carbons, glass-like carbons, etc. Papers on the secondary production of new carbon and composite materials from the above mentioned various carbons are within the scope of the journal. Papers on organic substances, including coals, will be considered only if the research has close relation to the resulting carbon materials. Carbon Letters also seeks to keep abreast of new developments in their specialist fields and to unite in finding alternative energy solutions to current issues such as the greenhouse effect and the depletion of the ozone layer. The renewable energy basics, energy storage and conversion, solar energy, wind energy, water energy, nuclear energy, biomass energy, hydrogen production technology, and other clean energy technologies are also within the scope of the journal. Carbon Letters invites original reports of fundamental research in all branches of the theory and practice of carbon science and technology.