Degradation of p-nitrophenol by nano-pyrite catalyzed Fenton reaction with enhanced peroxide utilization.

ABSTRACT: Pyrite (FeS₂) catalyzed conversion of H₂O₂ into oxidants is increasingly recognized as a promising Fenton-like process for treating recalcitrant contaminants. However, the underlying mechanism remains unclear, especially for nano-pyrite. The present study explored the potential of a nano-pyrite Fenton system for p-nitrophenol oxidation using high energy ball milled nano-pyrite. The enhancement in ˙OH production, with 3 times faster p-nitrophenol degradation than the conventional Fenton system, is ascribed to the reduction of pyrite size to the nanoscale, which alters the Fe²⁺ regeneration pathway, favoring faster and very efficient production of ˙OH during H₂O₂ decomposition. The amount of H₂O_2<

SUBMITTER: Liu T 

PROVIDER: S-EPMC9052541 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature