AKLINA N. TODOROVI}, SLOBODAN K. MILONJI}
Intrinsic ionization and complexation constants at an alumina/electrolyte interface were studied using the site binding model, while the sorption of alkali cations from aqueous solutions was interpreted via the triple-layer model. The surface properties of alumina were investigated through potentiometric acid-base titration, resulting in a point of zero charge (pHpzc) of alumina measured at 7.2. The mean values obtained for the intrinsic protonation and ionization constants of the surface hydroxyl groups, along with the intrinsic surface complexation constant in various electrolytes, were determined to be pKinta1 = 4.4, pKinta2 = 9.6, and pKintM+ = 9.5, respectively. This study provides crucial insights into the intrinsic surface characteristics and behavior of alumina when interacting with electrolytic solutions, which is essential for applications in adsorption and catalysis. The results highlight the significance of understanding surface interactions at the solid-liquid interface for optimizing processes involving alumina as a functional material.
@article{22fbbb7e-c55c-43b9-b772-4bae7e174270,
title={Determination of intrinsic equilibrium c},
author={AKLINA N. TODOROVI} and SLOBODAN K. MILONJI}},
year={2026},
language={en}
}TY - JOUR TI - Determination of intrinsic equilibrium c AU - AKLINA N. TODOROVI} AU - SLOBODAN K. MILONJI} PY - 2026 LA - en ER -
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