期刊
ULTRASONICS SONOCHEMISTRY
卷 17, 期 3, 页码 509-514出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultsonch.2009.08.010
关键词
YF3; Nanostructures; Sonochemical synthesis
资金
- National Natural Science Foundation of China [20771005, 20571002]
- Science and Technological Fund of Anhui Province for Outstanding Youth [08040106834]
- Education Department of Anhui Province [2006KJ006TD]
In the present paper, we reported the successful synthesis of dumbbell-like YF3 nanostructures with a high yield in a mixed system of water/N,N-dimethylformamide (DMF) under the assistance of ultrasound waves of 40 kHz with the ultrasonic power of 100% (200 W) at 65 degrees C for 2 h, employing Y2O3 (99.99%) and NH4F as the starting reactants. The product was characterized by means of powder X-ray diffraction (XRD), energy dispersive spectrometry (EDS), transmission electron microscopy (TEM), selected area electron diffraction (SAED) pattern and field-emission scanning electron microscopy (SEM). Some factors influencing the morphology of YF3 nanostructures, including the ultrasonic time and power, the amount of NH4F, and the ratio of water/DMF, were systematically investigated. Research showed that the morphology of YF3 could be tuned by the volume ratio of water/DMF. The roles of DMF and the ultrasonic wave in the formation of YF3 nanostructures were discussed. (c) 2009 Elsevier B.V. All rights reserved.
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