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| Hauptverfasser: | , , |
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| Format: | Recurso digital |
| Sprache: | Englisch |
| Veröffentlicht: |
Zenodo
2025
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| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.5281/zenodo.17803553 |
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Inhaltsangabe:
- <p>Bismuth ferrite (BiFeO₃, BFO), a multiferroic perovskite type material, has attractive optical, magnetic, and photocatalytic characteristics. However, phase purity, morphology, crystallite size, defect structure, and functional performance are all significantly impacted by the synthesis process. The sol gel method and the hydrothermal approach, two popular wet chemical techniques, are compared in this work with regard to BFO nanoparticles. We compare crystallinity, particle size/morphology, impurity phase formation, process parameters, and functional results (e.g., photocatalysis, magnetic/ferroelectric behavior). The main findings are sol gel often yields finer, more uniform particles at lower calcination temperatures but may require higher post annealing to remove residual organics and to obtain phase purity, hydrothermal synthesis provides good crystallinity and morphological control (e.g., rods, hollow spheres) under milder temperatures but is more sensitive to reaction time/pressure and may introduce secondary phases. The study also points out shortcomings and makes suggestions for improving the production of BFO nanoparticles.</p>