沙尘颗粒物大气化学过程研究进展  

Research progress of atmospheric chemical process of airborne dust particles

作　　者：俞泽臣 宋瑞瑶 王钦浩 权佳雨 张海燕 傅建捷 江桂斌[1,2,3] YU Zechen;SONG Ruiyao;WANG Qinhao;QUAN Jiayu;ZHANG Haiyan;FU Jianjie;JIANG Guibin(School of the Environment,Hangzhou Institute for Advanced Study,University of the Chinese Academy of Sciences,Hangzhou,310024,China;State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing,100085,China;College of Resources and Environment,University of Chinese Academy of Sciences,Beijing,100049,China)

机构地区：[1]国科大杭州高等研究院,环境学院,杭州310024 [2]中国科学院生态环境研究中心环境化学与生态毒理学国家重点实验室,北京100085 [3]中国科学院大学资源与环境学院,北京100049

出　　处：《环境化学》2025年第3期854-867,共14页Environmental Chemistry

基　　金：浙江省重点研发计划项目(2021C03176);国家自然科学基金(42305093,92143201);国科大杭州高等研究院自主立项项目(2022ZZ01016,2022ZZ01007);国科大杭州高等研究院人才科研启动项目;国家重大科技基础设施项目“地球系统数值模拟装置”资助.

摘　　要：沙尘颗粒物与各类气态大气污染物的非均相反应,对沙尘天气下的区域空气质量和污染物演化有重要影响.研究气态污染物在沙尘表面的吸附和非均相反应机理,有助于加深理解城市环境下污染物大气化学过程和多元污染物的复合过程,为沙尘颗粒物的大气化学影响和气候效应评估提供科学依据.本文简要介绍了大气沙尘颗粒物的组分和传输,对污染物在沙尘颗粒物表面的吸附、自发性氧化反应和光激发催化氧化反应机理进行了总结,并讨论了城市大气中常见的气态化合物(包括臭氧、二氧化硫、二氧化氮、有机化合物和二氧化碳)与沙尘颗粒物的非均相反应过程,最后提出了沙尘颗粒物大气化学过程研究中亟待解决的问题.Heterogeneous reaction of urban gaseous pollutants on the surface of mineral dust particles during sandstorm are an important pathway for the evolution and deposition of atmospheric pollutants.Research on the mechanisms of adsorption and heterogeneous reaction of various pollutants on dust promotes our understanding of atmospheric process and fate of these pollutants,as well as the analysis and simulation of combined air pollution scenarios.This study introduces the composition,sources,and transport of airborne dust particles;summarizes the mechanisms of the typical adsorption process,autooxidation,and photocatalytic oxidation of gaseous pollutants on the dust surface;and discusses the heterogeneous reactions of ozone,sulfur dioxide,nitrogen dioxide,hydrocarbon,and carbon dioxide on dust particles.In addition,the urgent issues that need to be addressed in studying atmospheric chemical process of airborne dust particles are identified.

关 键 词：沙尘颗粒物 非均相反应 大气化学 光催化反应 空气质量. 

分 类 号：X-1[环境科学与工程] O6[理学—化学]