Interfacial Fenton Chemistry on Aqueous Organic Aerosols

GSTDTAP

项目编号	1744353
	Interfacial Fenton Chemistry on Aqueous Organic Aerosols
	Michael Hoffmann
主持机构	California Institute of Technology
项目开始年	2017
	2017-10-01
项目结束日期	2020-09-30
资助机构	US-NSF
项目类别	Standard Grant
项目经费	643604(USD)
国家	美国
语种	英语
英文摘要	This research is focused on the study of how gas-phase species are converted to and processed in tropospheric aerosols. The proposed experiments represent an innovative approach to understanding the nature of the chemical interactions between reactive gases and organic matter in the presence of transition metal ions at air-aqueous interfaces. The results are expected to provide new information on the formation and evolution of tropospheric aerosols, especially those that are known to have adverse health impacts. This effort includes a systematic study of gas-liquid reactions taking place on the surface of aqueous and aqueous/water soluble organic solutions of selected substrates, exposed to the major gaseous O3, H2O2 and NO2 oxidants in ambient air under experimental conditions relevant to the troposphere. The central aim is to map the dependence of the extent of Fenton chemistry on: (1) pH, (2) the nature of typical organic substrates, either alone or in synthetic mixtures, (3) the presence of ligands representative of those found in secondary organic aerosol, as well as sequestering ligands, and (4) the presence of Cu ions. The project will provide new data to improve models of interfacial reactions on organic material in the atmosphere.
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/72071
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Michael Hoffmann.Interfacial Fenton Chemistry on Aqueous Organic Aerosols.2017.