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Atmospheric and Oceanic Optics

2020 year, number 6

Surface properties of precipitated aerosol In2O3 microparticles in ambient air

V.S. Zakharenko1, E.B. Daibova2
1Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
2Siberian Research Institute of Agriculture and Peat, Tomsk, Russia
Keywords: оксид индия (III), осажденный аэрозоль, условия окружающего воздуха, состав адсорбированного слоя, непрямые электронные переходы, фотоадсорбция, фотокатализ, квантовый выход, indium oxide (III), precipitated aerosol, ambient air conditions, adsorbed layer composition, indirect electron transitions, photoadsorption, photocatalytic, quantum yield

Abstract

Adsorption and photocatalytic properties of precipitated indic oxide aerosol particles are studied under ambient air conditions. The composition analysis of the adsorbed layer of aerosol particles is carried out. The quantum yields and its spectral dependences of oxygen photoadsorption and carbon monoxide photocatalytic oxidation are determined. Photocatalytic activity of carbon monoxide oxidation is detected during the absorption of light quanta from the region of indirect electron transitions (quantum energy < 2.9 eV).