徐永福课题组 - Prof. Yongfu Xu's Reasearch Group @ IAP CAS

New publication in ACPD: Insight into roles of water on aerosol formation from isoprene and toluene

Publish: December 14, 2017 Category: 最新消息 No Comments

Different roles of water in secondary organic aerosol formation from toluene and isoprene

Short Summary: In this work, the opposite effects of relative humidity (RH) on secondary organic aerosol (SOA) formation from toluene and isoprene were observed and have been well explained in terms of various experimental data and model simulations. The increase of SOA from toluene under humid conditions is mainly contributed by aqueous reactions of water soluble products, whereas SOA formation from isoprene-NO2 irradiations is controlled by stable Criegee intermediates that are greatly influenced by water.

https://www.atmos-chem-phys-discuss.net/acp-2017-1064/

Citation: Jia, L. and Xu, Y.: Different roles of water in secondary organic aerosol formation from toluene and isoprene, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2017-1064

The manuscript about SOA formation from cyclohexene in the presence of SO2 has been published in ACP

Publish: November 9, 2017 Category: 最新消息 No Comments

Photooxidation of cyclohexene in the presence of SO2: SOA yield and chemical composition
SOA yields vs SO2.jpg
SOA yields of cyclohexene photooxidation in the presence of NOx at different initial SO2 concentrations
Full text
Citation: Liu, S., Jia, L., Xu, Y., Tsona, N. T., Ge, S., and Du, L.: Photooxidation of cyclohexene in the presence of SO2: SOA yield and chemical composition, Atmos. Chem. Phys., 17, 13329-13343, https://doi.org/10.5194/acp-17-13329-2017, 2017.

New paper about effects of inorganic salts on SOA formation from acetone is published in AE

Publish: September 28, 2017 Category: 最新消息 No Comments

Effects of inorganic seeds on secondary organic aerosol formation from photochemical oxidation of acetone in a chamber
Highlights
•Acetone is confirmed to be one of the sources of SOA.
•Participation of inorganic seeds into acetone SOA is determined.
•Chemical compositions and formation mechanism of acetone SOA are proposed.
Proposed mechanism for the formation of organic sulfate in the aerosol phase.jpg

Fulltext:https://doi.org/10.1016/j.atmosenv.2017.09.036