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Laser Fragmentation Synthesis of Colloidal Bismuth Ferrite Particles
Simon Siebeneicher1, Friedrich Waag1, Marianela Escobar Castillo2
1Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstr. 7, 45141 Essen, Germany.
Nanomaterials (Basel, Switzerland)
|February 26, 2020
Summary
Laser fragmentation efficiently synthesized bismuth ferrite nanoparticles (BFNPs) from larger particles. An elliptical liquid jet produced smaller, narrower BFNPs compared to a circular jet.
Area of Science:
- Materials Science
- Nanotechnology
- Physical Chemistry
Background:
- Colloidal submicron-sized bismuth ferrite particles require size reduction for nanoparticle applications.
- Laser fragmentation is a potential method for synthesizing nanoparticles from larger precursors.
Purpose of the Study:
- To synthesize bismuth ferrite nanoparticles (BFNPs) via laser fragmentation.
- To investigate the effect of liquid jet geometry (circular vs. elliptical) on nanoparticle size and distribution.
- To characterize the synthesized BFNPs.
Main Methods:
- Laser fragmentation of bismuth ferrite particles in a liquid jet.
- Comparison of circular and elliptical fluid jet configurations.
- Analysis of resulting colloids using UV-VIS spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM).
Main Results:
- Achieved significant size reduction of bismuth ferrite particles from 450 nm to below 10 nm.
- Elliptical liquid jet resulted in slightly smaller and narrower size distribution of BFNPs compared to the circular jet.
- Characterization confirmed material morphology and composition of synthesized nanoparticles.
Conclusions:
- Laser fragmentation is effective for producing bismuth ferrite nanoparticles.
- Elliptical fluid jet offers better control over energy distribution, leading to improved nanoparticle size control.
- The study provides insights into optimizing laser fragmentation for nanoparticle synthesis.
