数字农科院2.0

Field experiment and simulation for catalytic decomposition of ozone by exterior wall coatings with self-purifying materials

文献类型： 外文期刊

作者： Lei Zhang;Jingwen Cui;Delai Wang;Yunfeng Li;Yafei Wang;Xue Han;Shuyang Xie;Junfeng Liu;Jinzhu Ma;Haixin Guo

作者机构：

关键词： Catalytic decomposition;Decomposition boundary;Exterior wall coating;Ozone;Self-purifying materials

期刊名称： Journal of Environmental Sciences (China)

ISSN： 1001-0742

年卷期： 2024 年 154 卷

页码：

收录情况： SCIE（2024版） ; ; EI（2024版） ; ; CSCD（2023-2024年度） ; ; 科技核心（2024版）

摘要： In recent years, ozone has become one of the key pollutants affecting the urban air quality. Direct catalytic decomposition of ozone emerges as an effective method for ozone removal. Field experiments were conducted to evaluate the effectiveness of exterior wall coatings with ozone decomposition catalysts for ozone removal in practical applications. ANSYS 2020R1 software was first used for simulation and analysis of ozone concentration and flow fields to investigate the decomposition boundary of these wall coatings. The results show that the exterior wall coatings with manganese-based catalysts can effectively reduce the ozone concentration near the wall coating. The ozone decomposition efficiency is negatively correlated with the distance from the coating and the decomposition boundary range is around 18 m. The decomposition boundary will increase with the increase of temperature, and decrease with the increase of the wind speed and the relative humidity. These results underscore the viability of using exterior wall coatings with catalysts for controlling ozone pollution in atmospheric environments. This approach presents a promising avenue for addressing ozone pollution through self-purifying materials on building external wall.

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