Dissolution and Reprecipitation of Barium at the Particulate BaTiO3-Aqueous Solution Interface
U Paik, M Lee, Vincent A. Hackley, Y S. Jung
The electrolinetic behavior of BaTO3 particles in an aqueous medium exhibit a hysteresis loop with titration direction. As BaTiO3 suspension was titrated toward acidic pH, the amount of Ba2+ dissolution strongly increases, and in the subsequent titration toward alkaline pH, Ba2+ adsorbed and/or reprecipitated on the Ba-depleted BaTiO3 surface. This dissolution-reprecipitation cycle results in the observed hysteresis behavior. An attempt was made to identify the responsible species of the adsorbed/reprecipitated compound by XPS in conjunction with electrokinetic titrations.
, Lee, M.
, Hackley, V.
and Jung, Y.
Dissolution and Reprecipitation of Barium at the Particulate BaTiO<sub>3</sub>-Aqueous Solution Interface, Materials Research Bulletin
(Accessed December 9, 2023)