摘要
In recent years,ozone has become one of the key pollutants affecting the urban air qual-ity.Direct catalytic decomposition of ozone emerges as an effective method for ozone re-moval.Field experimentswere conducted to evaluate the effectiveness of exteriorwall coat-ings 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 nega-tively correlated with the distance fromthe coating and the decomposition boundary range is around 18 m.The decomposition boundary will increase with the increase of tempera-ture,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.
基金
supported by the National Natural Science Foundation of China(Nos.52470114 and 52022104)
the National Key R&D Program of China(No.2022YFC3702802)
the Youth Innovation Promotion Association,CAS(No.Y2021020).
作者简介
Corresponding authors:Yafei Wang.E-mails:wangyafei@bipt.edu.cn;Corresponding authors:Jinzhu Ma.E-mails:jzma@rcees.ac.cn。
