Vacancy Engineered Zero-Valent Iron Steer Hydrogen Spillover toward Per- and Polychlorinated Organics Rapid Complete Dechlorination.

ABSTRACT: The elevated toxicity and persistent bioaccumulative propensity of per- and polychlorinated organics (PCOs) pose a substantial environmental hazard; however, current dechlorination technologies encounter challenges in surmounting the cumulative reductive inertia inherent to PCOs, resulting in low dechlorination efficiency and the persistence of ecotoxicity. Here, a vacancy-engineered zero-valent iron (ZVI) is proposed to address this challenge. The surface-modified carbon vacancies can extract outward-flowing electrons from lattice copper-doped ZVI (CvCu-ZVI), which react with trapped protons to generate reactive hydrogen in situ that subsequently spills over onto ZVI. Reversible hydrogen spillover enhances electron transfer, and superhydrophobic modification leads to a 38.1-fold increase

SUBMITTER: Yan Z 

PROVIDER: S-EPMC12667448 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature