Surface properties, organic aerosols

Hygroscopic, Surface, and Colloidal Properties of Organic Aerosols 474... 

Abstract Surface-active organic material is a key component of atmospheric aerosols. The presence of surfactants can influence aerosol heterogeneous chemistiy, cloud formation, and ice nucleation. We review the current state of the science on the sources, properties, and impacts of surfactants in atmospheric aerosols. 

The key features of soot are its chemical inertness, its physical and chemical adsorption properties, and its light absorption. The large surface area coupled with the presence of various organic functional groups allow the adsorption of many different materials onto the surfaces of the particles. This type of sorption occurs both in the aerosol phase and in the aqueous phase once particles are captured by cloud droplets. As a result, complex chemical processes occur on the surface of soot particles, and otherwise volatile species may be scavenged by the soot particles. 

Reliable prediction of thermodynamic and kinetic properties for chemical processes (e.g., reactions of chlorinated hydrocarbons on surfaces and in aqueous systems, atmospheric oxidation of organic precursors to ozone and aerosols) as well as for designing green chemical manufacturing processes. 

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