Aqueous phase photo-oxidation of brown carbon nitrophenols: reaction kinetics, mechanism, and evolution of light absorption

RF Hems, JPD Abbatt - ACS Earth and Space Chemistry, 2018 - ACS Publications
Light absorbing organic aerosol particles, referred to as brown carbon, are geographically
widespread and can have an important climate impact through the absorption of solar …

Formation and evolution of brown carbon during aqueous-phase nitrate-mediated photooxidation of guaiacol and 5-nitroguaiacol

J Yang, WC Au, H Law, CH Lam, T Nah - Atmospheric Environment, 2021 - Elsevier
Light absorbing organic aerosols, which are commonly referred to as brown carbon (BrC),
have important climate impacts. Phenolic compounds are a class of aromatic compounds …

Photochemical processing of aqueous atmospheric brown carbon

R Zhao, AKY Lee, L Huang, X Li, F Yang… - Atmospheric …, 2015 - acp.copernicus.org
Atmospheric brown carbon (BrC) is a collective term for light absorbing organic compounds
in the atmosphere. While the identification of BrC and its formation mechanisms is currently …

Molecular characterization of brown carbon (BrC) chromophores in secondary organic aerosol generated from photo-oxidation of toluene

P Lin, J Liu, JE Shilling, SM Kathmann… - Physical Chemistry …, 2015 - pubs.rsc.org
Atmospheric brown carbon (BrC) is a significant contributor to light absorption and climate
forcing. However, little is known about a fundamental relationship between the chemical …

Effect of solar radiation on the optical properties and molecular composition of laboratory proxies of atmospheric brown carbon

HJ Lee, PK Aiona, A Laskin, J Laskin… - … science & technology, 2014 - ACS Publications
Sources, optical properties, and chemical composition of atmospheric brown carbon (BrC)
aerosol are uncertain, making it challenging to estimate its contribution to radiative forcing …

Molecular analysis of secondary brown carbon produced from the photooxidation of naphthalene

K Siemens, A Morales, Q He, C Li… - … science & technology, 2022 - ACS Publications
We investigate the chemical composition of organic light-absorbing components, also
known as brown carbon (BrC) chromophores, formed in a proxy of anthropogenic secondary …

Secondary brown carbon formation via the dicarbonyl imine pathway: nitrogen heterocycle formation and synergistic effects

CJ Kampf, A Filippi, C Zuth, T Hoffmann… - Physical Chemistry …, 2016 - pubs.rsc.org
Dicarbonyls are known to be important precursors of so-called atmospheric brown carbon,
significantly affecting aerosol optical properties and radiative forcing. In this systematic study …

Aqueous-phase brown carbon formation from aromatic precursors under sunlight conditions

K Vidović, A Kroflič, M Šala, I Grgić - Atmosphere, 2020 - mdpi.com
At present, there are still numerous unresolved questions concerning the mechanisms of
light-absorbing organic aerosol (brown carbon, BrC) formation in the atmosphere. Moreover …

Photochemical degradation of 4-nitrocatechol and 2, 4-dinitrophenol in a sugar-glass secondary organic aerosol surrogate

AB Dalton, SA Nizkorodov - Environmental Science & Technology, 2021 - ACS Publications
The roles that chemical environment and viscosity play in the photochemical fate of
molecules trapped in atmospheric particles are poorly understood. The goal of this work was …

Nitrogen-containing compounds enhance light absorption of aromatic-derived brown carbon

Z Yang, NT Tsona, C George, L Du - Environmental Science & …, 2022 - ACS Publications
The formation of secondary brown carbon (BrC) is chemically complex, leading to an
unclear relationship between its molecular composition and optical properties. Here, we …