Results 341 to 350 of about 158,830 (405)

Key role of short-lived halogens on global atmospheric oxidation during historical periods.

open access: yesEnviron Sci Atmos
Bossolasco A   +10 more
europepmc   +1 more source

UV Photolysis of Mono- and Dichloramine Using UV-LEDs as Radiation Sources: Photodecay Rates and Radical Concentrations.

Environmental Science and Technology, 2020
UV-LEDs with four characteristic wavelengths (255, 265, 285 and 300 nm) were used to investigate the wavelength-dependence of the photolysis of two inorganic chloramines (NH2Cl and NHCl2) and their subsequent radical formation.
Ran Yin, E. R. Blatchley, C. Shang
semanticscholar   +1 more source

The role of reactive halogen species in disinfection by-product formation during chlorine photolysis.

Environmental Science and Technology, 2020
The multiple reactive oxidants produced during chlorine photolysis effectively degrade organic contaminants during water treatment, but their role in disinfection by-product (DBP) formation is unclear.
Devon Manley Bulman   +1 more
semanticscholar   +1 more source

Enhanced Sulfate Production by Nitrate Photolysis in the Presence of Halide Ions in Atmospheric Particles.

Environmental Science and Technology, 2020
Heterogeneous oxidation of SO2 is an effective production pathway of sulfate in the atmosphere. We recently reported a novel pathway for the heterogeneous oxidation of SO2 by in-particle oxidants (OH, NO2 and NO2-/HNO2) produced from particulate nitrate ...
Ruifeng Zhang   +4 more
semanticscholar   +1 more source

Photolysis of Heptanal

The Journal of Organic Chemistry, 2006
Photolysis of heptanal is investigated from an experimental and theoretical point of view. Photoexcited heptanal is believed to undergo rapid intersystem crossing to the triplet manifold and from there undergoes internal H-abstraction to form biradical intermediates.
Kendall N. Houk   +4 more
openaire   +3 more sources

The Impact of pH and Irradiation Wavelength on the Production of Reactive Oxidants during Chlorine Photolysis.

Environmental Science and Technology, 2019
Chlorine photolysis is an advanced oxidation process which relies on photolytic cleavage of free available chlorine (i.e., hypochlorous acid and hypochlorite) to generate hydroxyl radical, along with ozone and a suite of halogen radicals. Little is known
Devon Manley Bulman   +2 more
semanticscholar   +1 more source

Photolysis of Particulate Nitrate as a Source of HONO and NOx.

Environmental Science and Technology, 2017
Photolysis of nitric acid on the surface has been found recently to be greatly enhanced from that in the gas phase. Yet, photolysis of particulate nitrate (pNO3) associated with atmospheric aerosols is still relatively unknown.
C. Ye   +3 more
semanticscholar   +1 more source

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