Siebeneicher Simon, Waag Friedrich, Escobar Castillo Marianela, Shvartsman Vladimir V, Lupascu Doru C, Gökce Bilal
Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstr. 7, 45141 Essen, Germany.
Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany.
Nanomaterials (Basel). 2020 Feb 19;10(2):359. doi: 10.3390/nano10020359.
Laser fragmentation of colloidal submicron-sized bismuth ferrite particles was performed by irradiating a liquid jet to synthesize bismuth ferrite nanoparticles. This treatment achieved a size reduction from 450 nm to below 10 nm. A circular and an elliptical fluid jet were compared to control the energy distribution within the fluid jet and thereby the product size distribution and educt decomposition. The resulting colloids were analysed via UV-VIS, XRD and TEM. All methods were used to gain information on size distribution, material morphology and composition. It was found that using an elliptical liquid jet during the laser fragmentation leads to a slightly smaller and narrower size distribution of the resulting product compared to the circular jet.
通过照射液体射流来进行胶体亚微米尺寸的铋铁氧体颗粒的激光破碎，以合成铋铁氧体纳米颗粒。这种处理实现了尺寸从450纳米减小到10纳米以下。比较了圆形和椭圆形流体射流，以控制流体射流内的能量分布，从而控制产物尺寸分布和反应物分解。通过紫外可见光谱、X射线衍射和透射电子显微镜对所得胶体进行了分析。所有方法都用于获取有关尺寸分布、材料形态和组成的信息。结果发现，与圆形射流相比，在激光破碎过程中使用椭圆形液体射流会使所得产物的尺寸分布略小且更窄。
