Self-doping of biological secretions for waste catalyst reuse.

ABSTRACT: The tremendous costs of disposal and potential environmental problems caused by waste catalysts bring about an urgent need for catalyst regeneration without loss of catalytic activity and stability. Here, we report on a simple and reproducible method to regenerate waste ozonation catalysts by carbonization of self-doped biological secretions to synthesize highly active and stable carbon-based nano-single-atom-site catalysts (NSASCs), Cu@graphitic carbon (GC)-Al₂O₃, converting waste catalysts into a sustainable resource. Specifically, Cu metal atoms are dispersed on the GC-Al₂O₃ composite support in the form of Cu₁-C₃ and Cu_n-Cu_n, primarily because the adsorption of biological secretions enhances the dis

SUBMITTER: Li M 

PROVIDER: S-EPMC12673070 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature