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<p>This review elucidates physicochemical distinctions between short- and long-chain PFAS, including hydrophobicity, molecular volume, and C–F bond dissociation energy, and discusses their implications for environmental fate. Building on this framework, recent comparative studies examining chain-length-dependent PFAS removal efficiency and the associated mechanisms across non-destructive treatment processes were consolidated. In addition, this review clarifies the treatment-specific PFAS responses and mechanistic pathways involving defluorination and carbon-backbone cleavage during destructive processes.</p>

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Perfluoroalkyl chain-length-dependent environmental fate and treatment outcomes of PFAS in water

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月5日

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  • Youn-Jun Lee,
  • Gitae Moon,
  • Hoyeon Cha,
  • Jechan Lee,
  • Eilhann E. Kwon

摘要

This review elucidates physicochemical distinctions between short- and long-chain PFAS, including hydrophobicity, molecular volume, and C–F bond dissociation energy, and discusses their implications for environmental fate. Building on this framework, recent comparative studies examining chain-length-dependent PFAS removal efficiency and the associated mechanisms across non-destructive treatment processes were consolidated. In addition, this review clarifies the treatment-specific PFAS responses and mechanistic pathways involving defluorination and carbon-backbone cleavage during destructive processes.