Long-term leaching kinetics and solution chemistry of aqueous BaTiO 3 powder suspensions: a numerical model supported experiment

The advent of lead-free perovskite materials with favorable toxicity profiles has made them candidates for and environmental applications. However, their tendency to leach A-site cations raises concerns about toxicity, catalytic efficiency, and slurry properties. The present study investigates the l...

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Bibliographic Details
Published in:Journal of materials chemistry. B, Materials for biology and medicine Materials for biology and medicine, 2024-12, Vol.12 (47), p.12349
Main Authors: Bentzen, Marcus, Lindauer, Vojtěch, Mokrý, Pavel, Aune, Ragnhild Elizabeth, Glaum, Julia
Format: Article
Language:English
Subjects:
Barium Compounds - chemistry
Hydrogen-Ion Concentration
Kinetics
Oxides - chemistry
Powders - chemistry
Solutions
Suspensions - chemistry
Titanium - chemistry
Water - chemistry
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Summary:The advent of lead-free perovskite materials with favorable toxicity profiles has made them candidates for and environmental applications. However, their tendency to leach A-site cations raises concerns about toxicity, catalytic efficiency, and slurry properties. The present study investigates the long-term leaching kinetics of BaTiO powders over 31 days in aqueous solutions of varying pH levels. Using ICP-MS analysis and a numerical model based on the Unreacted Shrinking Core (USC) principle. The study extends the understanding of BaTiO stability beyond previously reported timeframes. The findings highlight the material's long-term stability, with implications for biomedical and environmental applications.
ISSN:2050-750X
2050-7518
DOI:10.1039/D4TB01708K