Core-Shell-Like Structured Co₃O₄@SiO₂ Catalyst for Highly Efficient Catalytic Elimination of Ozone.

ABSTRACT: Co₃O₄ is an environmental catalyst that can effectively decompose ozone, but is strongly affected by water vapor. In this study, Co₃O₄@SiO₂ catalysts with a core-shell-like structure were synthesized following the hydrothermal method. At 60% relative humidity and a space velocity of 720,000 h^-1, the prepared Co₃O₄@SiO₂ obtained 95% ozone decomposition for 40 ppm ozone after 6 h, which far outperformed that of the 25wt% Co₃O₄/SiO₂ catalysts. The superiority of Co₃O₄@SiO₂ is ascribed to its core@shell structure, in which Co₃O₄ is wrapped inside the SiO₂ shell structure to avoid air exposure. This

SUBMITTER: Ding J 

PROVIDER: S-EPMC8695612 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature