Determination of intrinsic equilibrium constants at an alumina/electrolyte interface
Апстракт
Intrinsic ionization and complexation constants at an alumina/electrolyte interface were studied by the site binding model, while the sorption of alkali cations from aqueous solutions was interpreted by the triple-layer model. The surface properties of alumina were investigated by the potentiometric acid-base titration method. The point of zero charge (pH(pzc)) of alumina obtained by this method was found to be 7.2. The obtained mean values of the intrinsic protonation and ionization constants of the surface hydroxyl groups and the intrinsic surface complexation constant, in different electrolytes, are pK(a1)(int) = 4.4, pK(a2)(int) = 9.6 and pK(M+)(int) = 9.5, respectively.
Кључне речи:
alumina / surface properties / point of zero charge / intrinsic ionization and complexation contantsИзвор:
Journal of the Serbian Chemical Society, 2004, 69, 12, 1063-1072
DOI: 10.2298/JSC0412063T
ISSN: 0352-5139
WoS: 000226998500008
Scopus: 2-s2.0-31644442698
Колекције
Институција/група
VinčaTY - JOUR AU - Todorović, Žaklina AU - Milonjić, Slobodan K. PY - 2004 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2858 AB - Intrinsic ionization and complexation constants at an alumina/electrolyte interface were studied by the site binding model, while the sorption of alkali cations from aqueous solutions was interpreted by the triple-layer model. The surface properties of alumina were investigated by the potentiometric acid-base titration method. The point of zero charge (pH(pzc)) of alumina obtained by this method was found to be 7.2. The obtained mean values of the intrinsic protonation and ionization constants of the surface hydroxyl groups and the intrinsic surface complexation constant, in different electrolytes, are pK(a1)(int) = 4.4, pK(a2)(int) = 9.6 and pK(M+)(int) = 9.5, respectively. T2 - Journal of the Serbian Chemical Society T1 - Determination of intrinsic equilibrium constants at an alumina/electrolyte interface VL - 69 IS - 12 SP - 1063 EP - 1072 DO - 10.2298/JSC0412063T ER -
@article{ author = "Todorović, Žaklina and Milonjić, Slobodan K.", year = "2004", abstract = "Intrinsic ionization and complexation constants at an alumina/electrolyte interface were studied by the site binding model, while the sorption of alkali cations from aqueous solutions was interpreted by the triple-layer model. The surface properties of alumina were investigated by the potentiometric acid-base titration method. The point of zero charge (pH(pzc)) of alumina obtained by this method was found to be 7.2. The obtained mean values of the intrinsic protonation and ionization constants of the surface hydroxyl groups and the intrinsic surface complexation constant, in different electrolytes, are pK(a1)(int) = 4.4, pK(a2)(int) = 9.6 and pK(M+)(int) = 9.5, respectively.", journal = "Journal of the Serbian Chemical Society", title = "Determination of intrinsic equilibrium constants at an alumina/electrolyte interface", volume = "69", number = "12", pages = "1063-1072", doi = "10.2298/JSC0412063T" }
Todorović, Ž.,& Milonjić, S. K.. (2004). Determination of intrinsic equilibrium constants at an alumina/electrolyte interface. in Journal of the Serbian Chemical Society, 69(12), 1063-1072. https://doi.org/10.2298/JSC0412063T
Todorović Ž, Milonjić SK. Determination of intrinsic equilibrium constants at an alumina/electrolyte interface. in Journal of the Serbian Chemical Society. 2004;69(12):1063-1072. doi:10.2298/JSC0412063T .
Todorović, Žaklina, Milonjić, Slobodan K., "Determination of intrinsic equilibrium constants at an alumina/electrolyte interface" in Journal of the Serbian Chemical Society, 69, no. 12 (2004):1063-1072, https://doi.org/10.2298/JSC0412063T . .