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Atmospheric and Oceanic Optics

2019 year, number 6

Surface properties of aerosol particles obtained by dispersing a cassiterite crystal under tropospheric conditions

V.S. Zakharenko1, E.B. Daibova2
1Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
2Siberian Research Institute of Agriculture and Peat, Tomsk, Russia
Keywords: минерал касситерит, осажденный аэрозоль, условия окружающего воздуха, состав адсорбированного слоя, фотодесорбция, квантовый выход, cassiterite mineral, precipitated aerosol, ambient air, composition of adsorbed layer, photodesorption, quantum yield


The adsorption layer of aerosol microparticles from cassiterite mainly containing tin dioxide is studied under ambient conditions, as well as the kinetics of dark and photoinduced processes. The quantum yield of carbon dioxide photodesorption is estimated and its spectral dependence is derived. Carbon dioxide photodesorption is observed in the intrinsic absorption region of tin dioxide; it is one of the stages of carbon monoxide photocatalytic reaction.