Nano-island-encapsulated cobalt single-atom catalysts for breaking activity-stability trade-off in Fenton-like reactions.

ABSTRACT: Single-atom catalysts (SACs) have been increasingly acknowledged for their performance in sustainable Fenton-like catalysis. However, SACs face a trade-off between activity and stability in peroxymonosulfate (PMS)-based systems. Herein, we design a nano-island encapsulated single cobalt atom (Co_SA/Zn.O-ZnO) catalyst to enhance the activity and stability of PMS activation for contaminant degradation via an "island-sea" synergistic effect. In this configuration, small carrier-based ZnO nanoparticles (the "islands") are utilized to confine and stabilize Co single atoms. The expansive ZnO substrate (the "sea") upholds a neutral microenvironment within the reaction system. The Co_SA/Zn.O-ZnO/PMS system exhibits a remarkable selectivity in exclusively generating sulfate radi

SUBMITTER: Zhang ZQ 

PROVIDER: S-EPMC11697253 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature