Catalytic ozone decomposition and adsorptive VOCs removal in bimetallic metal-organic frameworks

Chen Dong, Jia-Jia Yang, Lin-Hua Xie (), Ganglong Cui (), Wei-Hai Fang and Jian-Rong Li ()
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Chen Dong: Beijing University of Technology
Jia-Jia Yang: Beijing Normal University
Lin-Hua Xie: Beijing University of Technology
Ganglong Cui: Beijing Normal University
Wei-Hai Fang: Beijing Normal University
Jian-Rong Li: Beijing University of Technology

Nature Communications, 2022, vol. 13, issue 1, 1-10

Abstract: Abstract Atmospheric ozone has long been a threat to human health, however, rational design of high-performance O3-decomposition catalysts remains challenging. Herein, we demonstrate the great potential of a series of isomorphous bimetallic MOFs denoted as PCN-250(Fe2M) (M = Co2+, Ni2+, Mn2+) in catalytic O3 decomposition. Particularly, PCN-250(Fe2Co) showed 100% O3 removal efficiency for a continuous air flow containing 1 ppm O3 over a wide humidity range (0 ‒ 80% RH) at room temperature. Mechanism studies suggested that the high catalytic performance originated from the introduction of open Co(II) sites as well as its porous structure. Additionally, at low pressures around 10 Pa, PCN-250(Fe2Co) exhibited high adsorption capacities (89 ‒ 241 mg g−1) for most VOCs, which are not only a class of hazardous air pollutants but also the precursor of O3. This work opens up a new avenue to develop advanced air purification materials for O3 and VOCs removal in one.

Date: 2022
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DOI: 10.1038/s41467-022-32678-2

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