Toward Standardized Evaluation of PFAS Sorbents

Abstract Per‐ and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants with global distribution and documented risks to human and environmental health. Sorbent‐based technologies are widely explored for PFAS removal, yet the advancement of this field is impeded by inconsistent and incomplete experimental reporting, hindering reproducibility and comparative analysis. In this perspective, a structured framework is presented to guide the comprehensive characterization when reporting of new PFAS sorbents. The proposed framework defines three essential domains for experimental evaluation: i) sorbent characterization, ii) water matrix specification and PFAS details, and iii) sorption and regeneration performance, including flow‐through packed‐bed evaluation (both bench‐ and pilot‐scales). General guidelines are provided for each domain to promote consistency, transparency, and comparability across studies. This Perspective aims to facilitate rigorous cross‐study comparison and accelerate the development of effective PFAS sorbents.