Low-temperature synthesis of ZnO-Bi₂O₃ nanocomposite by sonochemical route
by Zhifu Wu; Guiquan Guo; Min Xu; Yunfeng Shi
International Journal of Nanomanufacturing (IJNM), Vol. 10, No. 5/6, 2014

Abstract: Sonochemical synthesis and optical property of palm-leaf-like ZnO-Bi₂O₃ nanocomposite have been reported. The analysis of XRD approves that the nanocomposite material is ZnO-Bi₂O₃. The composition of the product has been analysed by XPS and it is concluded that the molecular ratio of Bi₂O₃:ZnO is 1:4.6. SEM images show that the morphology of the nanocomposite is stelliform dendrite. The sonication time appears to be a critical parameter for shape determination. Also, the presence of Bi^B+ is vital to the formation of the palm-leaf-like dentrites. Photoluminescence spectra at room temperature of the products show that the synthesised materials possess good optical properties. The mechanism of the dendrite growth has also been discussed.

Online publication date: Sat, 20-Dec-2014

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