Preparation of Mesoporous Zeolites and Their Applications in Catalytic Elimination of Atmospheric Pollutants

Abstract

With increasing environmental awareness, the issue of atmospheric pollution has gained significant attention. Specifically, three types of atmospheric pollutants, namely, nitrogen oxides, volatile organic compounds, and carbon monoxide, have become the focus of widespread concern. In addressing these pollutants, mesoporous zeolites have emerged as promising materials due to their large specific surface area, which enables effective dispersion of active sites, and their large pore volume, which facilitates efficient diffusion. This article provides a comprehensive overview of the preparation methods of mesoporous zeolites and their applications in removing nitrogen oxides, volatile organic compounds, and carbon monoxide. It also highlights the challenges and limitations faced by the application of mesoporous zeolites in pollutant removal and emphasizes their potential as efficient catalysts.

Application of Mesoporous/Hierarchical Zeolites as Catalysts for the Conversion of Nitrogen Pollutants: A Review

“…Despite the large amount of general scientific literature describing mesoporous zeolites, only a few reports focus on individual environmental catalysis reactions, bringing together the state of the art. Miao et al [26] recently discussed the use of mesoporous zeolites in the catalytic elimination of air pollutants such as nitrogen oxides (focussing mainly on catalytic reduction of NO), volatile organic compounds, and carbon monoxide. Due to the lack of more detailed research on each of these types of pollutants, we would like to focus exclusively on the issue of nitrogen air pollutants such as NO x , NH 3 , and N 2 O, and their elimination through the use of mesoporous/hierarchical zeolites.…”