Group energetic characteristics of non-ionic surfactants adsorption process
M.R. Maksymiuk, V.Ya. Poberezhny, V.V. Goncharuk
Institute of Colloid Chemistry and Chemistry of Water, Ukrainian National Academy of Sciences, Vernadsky avenue 42, 03680 Kyiv, Ukraine
The scope of the definite experimental evidence regarding studies of adsorption and micellation of surfactants, and, in particular, the regularities of surface activity and critical micellation concentration in the surfactant homologic series had resulted in the development of various approaches to the prediction of surface-active pro Continue Reading »
Surface Properties of MnCO3: Adsorption
of the Organic Compounds from Water Solution
N.V. Nikolenko
Ukrainian State Chemical Technology University,
Gagarin av. 8, 49005 Dniepropetrovsk, Ukraine, e-mail: nick@academy.dp.ua
Surface properties of manganese (II) carbonate are of interest in connection with flotation problems of carbonaceous minerals. It is known that for the adsorption of polar molecules on ionic adsorbents, the contribution of dispersion and electrostatic forces is most significant. We believe that the selectivity of adsorption can be explained also as Continue Reading »
ELECTROSURFACE PROPERTIES OF AIIIBV SEMICONDUCTORS IN WATER SOLUTIONS
V.G. Lutsenko
Institute of General and Inorganic Chemistry, Ukrainian National Academy of Sciences,Palladin avenue 32-34, 03680 Kyiv, Ukraine
AIIIBV Compounds are used in various semiconductor devices whose properties depend on quality of semiconductor surface. Etching in water solutions are used for preparation of optimal surface different crystalline planes of AIIIBV semiconductors. Most of AIIIBV compounds form crystals with ZnS grate (sfalerite). Sfalerite structure and ionic component give polarity alo Continue Reading »
COMPARISON OF CADMIUM
AND NICKEL ADSORPTION BEHAVIOUR
ON DIFFERENT TYPE ZEOLITES
M. Majdan1, P. Staszczuk1, M. Kowalska-Ternes1,
A. Gładysz-Płaska1, E. Marchewka2
1Uniwersytet Marii Curie Skłodowskiej, Wydział Chemii,
Maria Curie-Sklodowska sq. 3, 20-031 Lublin, Poland
2Politechnika Radomska im. Kazimierz Pulaskiego,
Wydział Materialoznawstwa i Technologii Obuwia,
Chrobrego 27, 26-600 Radom, Poland
The unique problem of cadmium/nickel separation appears during reprocessing of wastes from ca Continue Reading »
Determination of the Dependencies Between the Net Retention Volumes and the Parameters Characterizing the Properties of Adsorbents
H. Grajek, Z. Witkiewicz
1Military Technical Academy, Institute of Chemistry,
Kaliski st. 2, 00-908 Warsaw, Poland
Propane adsorption isotherms have been determined chromatographically on different samples of activated carbon for different volumes of adsorbate injected onto the column.
The dependencies between the pore volume filled with propane during chromatographic process, W, and molar differential work of adsorption, A, have been determined on the basis of the Continue Reading »
Structural and Adsorptive Characteristics
of Fumed Titania/Silica and Alumina/Silica/Titania
at High Concentration of Titania
V.M. Gun\’ko1, I.F. Mironyuk1, V.I. Zarko1, E.V. Goncharuk1,
M.V. Borysenko1, R. Leboda2, J. Skubiszewska-Zięba2,
B. Charmas2, W. Janusz2, and S. Chibowski2
1Institute of Surface Chemistry, Ukrainian National Academy of Sciences, General Naumov st. 17, 03164 Kyev, Ukraine
2Faculty of Continue Reading »