Nanoconfinement steers nonradical pathway transition in single atom fenton-like catalysis for improving oxidant utilization.

ABSTRACT: The introduction of single-atom catalysts (SACs) into Fenton-like oxidation promises ultrafast water pollutant elimination, but the limited access to pollutants and oxidant by surface catalytic sites and the intensive oxidant consumption still severely restrict the decontamination performance. While nanoconfinement of SACs allows drastically enhanced decontamination reaction kinetics, the detailed regulatory mechanisms remain elusive. Here, we unveil that, apart from local enrichment of reactants, the catalytic pathway shift is also an important cause for the reactivity enhancement of nanoconfined SACs. The surface electronic structure of cobalt site is altered by confining it within the nanopores of mesostructured silica particles, which triggers a fundamental transition from singlet oxyg

SUBMITTER: Meng Y 

PROVIDER: S-EPMC11192908 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature