High Perfluorooctanoic Acid Adsorption Performance of Sub-monolayer Fluoroalkylsilane on Silicon Wafers.

ABSTRACT: In recent years, per/polyfluoroalkyl substances (PFAS) have gained widespread attention owing to their potential hazards to human health and the environment. However, their chemical characteristics render detection and adsorption challenging. In this study, we controlled the density of polyfluoroalkylsilane (PFS) on silicon wafers from sub-monolayers to monolayers. Two PFSs, namely, (CF₃(CF₂)₅(CH₂)₂SiCl₃ and CF₃(CF₂)₉(CH₂)₂SiCl₃), were used to investigate the effect of the -CF₂- length on the adsorption characteristics. For each surface, we measured the change in surface energy due to the adsorption of perfluorooctanoic acid (PFOA) in an aqueous sol

SUBMITTER: Li Y 

PROVIDER: S-EPMC12269080 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature