Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2530
Title: Influence of dispersing agents on the solubility of perovskites in water
Authors: Şakar-Deliormanlı, Aylin
Çelik, Erdal
Polat, Mehmet
Keywords: Anionic polyelectrolyte
Ceramics
Comb like polymer
Solubility
Suspensions
Issue Date: 2009
Publisher: Taylor and Francis Ltd.
Source: Şakar-Deliormanlı, A., Çelik, E., and Polat, M. (2009). Influence of dispersing agents on the solubility of perovskites in water. Journal of Dispersion Science and Technology, 30(5), 704-711. doi:10.1080/01932690802553957
Abstract: In this study, solubility behavior of lead magnesium niobate (PMN) powders in water was investigated in the presence of pure polyacrylic acid and polyacrylic acid/polyethylene oxide comb polymers. Experiments were performed by measuring the solubility of PMN in terms of the concentration of Pb+2 and Mg+2 ions in supernatant as a function of pH and dispersing agent dosage. The concentrations of the metal ions in supernatant were found to be affected by the dispersant concentration, stirring time and the suspension pH. Results revealed that both dispersing agents enhance the cation dissolution from PMN surface at pH 9 due to weak (reversible) adsorption and complexation of Pb+2 and Mg+2 by carboxylate groups. On the other hand, under acidic conditions cation dissolution from PMN is inhibited and this was attributed to the strong adsorption of dispersing agents onto the powder surface and formation of a dense polymer layer.
URI: http://dx.doi.org/10.1080/01932690802553957
http://hdl.handle.net/11147/2530
ISSN: 0193-2691
0193-2691
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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