Results 21 to 30 of about 158,830 (405)
Photolysis Controls Atmospheric Budgets of Biogenic Secondary Organic Aerosol.
Secondary organic aerosol (SOA) accounts for a large fraction of tropospheric particulate matter. While SOA production rates and mechanisms have been extensively investigated, loss pathways remain uncertain.
M. Zawadowicz+7 more
semanticscholar +1 more source
Gaseous emissions, a side effect of livestock and poultry production, need to be mitigated to improve sustainability. Emissions of ammonia (NH3), hydrogen sulfide (H2S), greenhouse gases (GHGs), and odorous volatile organic compounds (VOCs) have a ...
Myeongseong Lee+8 more
doaj +1 more source
In this work, the dissipation of the antibiotics doxycycline (DC) (from the group of tetracyclines), enrofloxacin (ENR) (a fluoroquinolone), and sulfamethoxypyridazine (SMP) (a sulfonamide) is investigated both under simulated sunlight and in the dark ...
Cristina Álvarez-Esmorís+5 more
doaj +1 more source
Direct Observation and Quantitative Measurement of OH Radical Desorption During the Ultraviolet Photolysis of Liquid Nonanoic Acid [PDF]
Ultraviolet (UV) photolysis of fatty acid surfactants which cover the surfaces of atmospheric liquid aerosols and are found in the oceans such as nonanoic acid (NA) has recently been suggested as a source of hydroxyl (OH) radicals in the troposphere. We used laser-induced fluorescence to directly observe OH radicals desorbed from the surface of neat ...
arxiv +1 more source
Production of Hydroxyl Radicals in the Dark [PDF]
Oxidation is prevalent in atmospheric chemistry due to the abundance of oxidants in the atmosphere. One of the commonly found oxidants is hydroxyl (OH) radical.
Maeng, Do Young
core +1 more source
Laser Photolysis of Bilirubin [PDF]
Photodegradation of bilirubin in vitro has been investigated by using monochromatic light supplied by an argon ion laser selecting the 457.9, 488.0 and 514.5 nm wavelengths. Bilirubin was examined in chloroform, in aqueous solutions and in human serum under different experimental conditions of concentration, laser power and time of irradiance ...
DONZELLI, GIAN PAOLO+3 more
openaire +4 more sources
Long wavelength single photon like driven photolysis via triplet triplet annihilation
Photolysis has enabled the occurrence of numerous discoveries in chemistry, drug discovery and biology. However, there is a dearth of efficient long wavelength light mediated photolysis. Here, we report general and efficient long wavelength single photon
Ling Huang+7 more
semanticscholar +1 more source
Photochemical degradation of alachlor in water
This study investigates the photochemical degradation of alachlor, a chloroacetanilide herbicide. All experiments were conducted in ultra-pure deionized water (ASTM Type I quality) using direct ultraviolet (UV) photolysis and the UV/H2O2 advanced ...
Tajana Đurkić+6 more
doaj +1 more source
New Energy Technologies: Microalgae, Photolysis and Airborne Wind Turbines
Because of the near-term risk of extreme weather events and other adverse consequences from climate change and, at least in the longer term, global fossil fuel depletion, there is worldwide interest in shifting to noncarbon energy sources, especially ...
Patrick Moriarty, Damon Honnery
doaj +1 more source
Fragmentation dynamics of the ethyl bromide and ethyl iodide cations: a velocity-map imaging study [PDF]
The photodissociation dynamics of ethyl bromide and ethyl iodide cations (C2H5Br+ and C2H5I+) have been studied. Ethyl halide cations were formed through vacuum ultraviolet (VUV) photoionization of the respective neutral parent molecules at 118.2 nm, and
Ashfold, Michael N. R.+5 more
core +2 more sources