有机酸促进大气气溶胶成核机理研究进展  

Research Progress of Atmospheric Aerosol Nucleation Mechanism Promoted by Organic Acids

作　　者：张杨[1] 文辉 林晓晓 陈娇 ZHANG Yang;WEN Hui;LIN Xiaoxiao;CHEN Jiao(Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;China Meteorological Administration Training Center Anhui Branch,Hefei 230061,China)

机构地区：[1]中国科学院安徽光学精密机械研究所,安徽合肥230031 [2]中国气象局气象干部培训学院安徽分院,安徽合肥230061

出　　处：《大气与环境光学学报》2018年第5期355-363,共9页Journal of Atmospheric and Environmental Optics

基　　金：国家自然科学基金;41505114;41775122;40605102~~

摘　　要：大气中有机成分种类繁多,结构复杂,有机酸作为大气环境各相中含量最丰富的有机物种之一备受关注,最近的实验研究表明,部分芳香族有机酸能够促进硫酸-水团簇的成核及生长.理论计算也表明在有机酸的存在下,一些小分子有机酸与硫酸通过氢键的相互作用形成非均相的团簇降低了成核壁垒,从而促进团簇的形成,对新粒子的成核产生具有重要促进作用。鉴于有机酸对大气气溶胶成核机理研究具有重要的意义,对其近些年在实验和理论上的进展进行了回顾,并对未来前景作了展望。Organic acid have been widely identified as common components in atmospheric particulate matter, which is important for the investigation of atmospheric aerosol nucleation mechanism. Experimental results show that organic acids can promote the growth of sulfuric acid-water clusters. The theoretical calculations also show that the interaction of organic acids with sulfuric acid through hydrogen bonds in the presence of organic acids forms heterogeneous clusters, which can promote the formation of clusters by reducing the nucleation barriers to strengthen the formation of new particles. The influence of organic acids on the nucleation process of aerosols is reviewed, and a prospect for the development is given.

关 键 词：气溶胶 新粒子生成 有机酸 成核机理 团簇 

分 类 号：P426[天文地球—大气科学及气象学]