Lewis base sites of non-oxide supports boost oxygen absorption and activation over supported Pt catalysts.

ABSTRACT: Formaldehyde (HCHO) oxidation to improve indoor air quality has attracted extensive attention. Designing efficient catalysts for HCHO removal at room temperature still remains challenging. Herein, we report a novel strategy to boost HCHO oxidation by the synergistic effect of Pt nanoparticles and C₃N₄. The pyridine nitrogen of C₃N₄ can create Lewis base sites, which function in adsorbing and activating O₂ molecules. As the preparation temperature increased, the pyridine nitrogen content increased on the C₃N₄ surface, leading to a more significant synergistic effect. The mechanism study by in situ DRIFTS indicated that the adsorbed O₂ molecules were activated by Pt/C₃N₄. As a

SUBMITTER: Liu J 

PROVIDER: S-EPMC9040154 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature