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Dissolution properties of BaTiO3 nanoparticles in aqueous suspensions

Tripathy, Sushree Swarupa and Raichur, Ashok M (2011) Dissolution properties of BaTiO3 nanoparticles in aqueous suspensions. In: Journal of Experimental Nanoscience, 6 (2). pp. 127-137.

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Abstract

Dissolution of barium ion from aqueous suspensions of commercial nano-sized barium titanate powders (BaTiO3) has been studied at various pH values, solids loading, different time intervals and different electrolyte concentrations. Zeta potential measurements at various pH values and Fourier transform infrared spectroscopy study were also carried out to know the surface behaviour. Dissolution of Ba2+ depends on the suspension pH and stirring time period. The iso-electric points were found at 3.4 and 12.2 for as-received BaTiO3 powder and 2.3 for the leached BaTiO3. The Ba2+-leached BaTiO3 suspension retards further leaching of Ba2+ ions at different pH values, which favours the achievement of stable suspension.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Keywords: Dissolution;dispersion properties;BaTiO3;nanoparticles
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Id for Latest eprints
Date Deposited: 19 Apr 2011 06:18
Last Modified: 19 Apr 2011 06:18
URI: http://eprints.iisc.ac.in/id/eprint/36957

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