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The roles of heterogeneous chemical processes in the formation of an air pollution complex and gray haze
Urban and regional air pollutions are characterized by high concentrations of secondary pollutants such as photo-oxidants (mainly ozone) and fine particulate matter, which are formed through chemical
Heterogeneous reaction of formaldehyde on the surface of γ-Al2O3 particles
Abstract Formaldehyde is one of the most important carbonyl organic compounds. Heterogeneous reactions of formaldehyde on the surface of oxides of crustal elements could be an important sink for
Heterogeneous reaction of SO2 on TiO2 particles
The heterogeneous reaction of SO2 on TiO2 particles was studied using in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). The influences of the oxygen concentration,
SO2 Uptake on Oleic Acid: A New Formation Pathway of Organosulfur Compounds in the Atmosphere
Organosulfates are tracers for secondary organic aerosol (SOA) formation. We propose a new mechanism of organosulfur product formation in the atmosphere, in which sulfur dioxide (SO2) reacts directly
Photocatalytic degradation of rhodamine B by dye-sensitized TiO2 under visible-light irradiation
Perylene tetracarboxylic diimide (PTCDI), widely used in organic photovoltaic devices, is an n-type semiconductor with strong absorption in the visible-light spectrum. There has been almost no study
Physicochemical characteristics and toxic effects of ozone-oxidized black carbon particles
Abstract Black carbon (BC) or soot particles formed by combustion are ubiquitous in the atmosphere and have a significant effect on climate and human health. Oxidation can change the physicochemical
The use of vacuum ultraviolet irradiation to oxidize SO₂ and NOx for simultaneous desulfurization and denitrification.
The additional OH and HO2 generated through the reactions of NO+HO2 and SO2+OH/HO2 improved treatment efficiency, while the oxidation products of NOx consumed massive reactive oxygen species, reducing the removal efficiencies.
Generation of reactive oxygen species in simulated flue gas under vacuum ultraviolet radiation
Abstract Reactive oxygen species, which are responsible for the removal of SO2 and NOx, generated under vacuum ultraviolet (VUV) radiation in simulated flue gas (N2/O2/CO2/H2O (v/v) = 74%/8%/10%/8%
Multiphase oxidation of SO 2 by NO 2 on CaCO 3 particles
Abstract. Heterogeneous/multiphase oxidation of SO2 by NO2 on solid or aqueous particles is thought to be a potentially important source of sulfate in the atmosphere, for example, during heavily
Physicochemical characteristics, oxidative capacities and cytotoxicities of sulfate-coated, 1,4-NQ-coated and ozone-aged black carbon particles
Black carbon (BC) particles play important roles in climate change, visibility impairment, atmospheric reaction process, and health effect. The aging processes of BC alter not only atmospheric