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Atmospheric and Oceanic Optics

2015 year, number 6

Photoprocesses on the surface of the deposited aerosol produced by dispersing a CaCO3 crystal in air

V.S. Zakharenko1, E.B. Daibova2,3
1Boreskov Institute of Catalysis SB RAS, pr. Lavrentieva 5, Novosibirsk, Russia, 630090
2Siberian Research Institute of agriculture and peat Russian academy of agricultural sciences, 3 Gagarin str., Tomsk, Russia, 634050
3Gorno-Altaisk State University, 649000, Gorno-Altaisk, Altai Republic, Lenkina str., 1, Russia
Keywords: calcite crystal, dispersion under ambient air, CaCO3 aerosol, CO2 hotodesorption, N2O photoadsorption, quantum yield


The investigation of adsorption layer of deposited aerosol particles obtained by dispersion of a mineral calcite crystal under tropospheric conditions (ambient air) was carried out. It was revealed that the nitrous oxide and Freon 22 adsorption occurred on aerosol particle surface under UV irradiation. The quantum efficiency of processes under UV irradiation was determined.