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在450K,pH值为11的条件下,以SbCl3,和Na2TeO3粉体为原料,用水热法制备了Sb2Te3纳米线。X-射线衍射(XRD)分析表明,所制的的材料为Sb2Te3,透射电镜(TEM)观察到Sb2Te3纳米线直径约为20nm,长度在200~600nm之间,并且自然平行密排成六边形纳米片状;然而在450K,pH值为13的条件下,制备出的产物则为完整的纳米片。扫描电镜(TEM)分析发现纳米线延(015)方向生长。差热测试得到Sb2Te3纳米线的熔点为727.5K。红外光谱的进一步研究表明,由Sb2Te3纳米线编织成的纳米片结构要优于整体生长成的纳米片,并就Sb2Te3纳米线的生长机理进行了初步推测。
The Sb2Te3 nanowires were prepared by hydrothermal method using SbCl3 and Na2TeO3 as raw materials at 450K and pH value of 11. X-ray diffraction (XRD) analysis showed that the prepared material was Sb2Te3. The transmission electron microscope (TEM) showed that the diameter of Sb2Te3 nanowires was about 20nm and the length was between 200-600nm. However, at 450K, pH 13, the product was a complete nanosheet. Scanning electron microscopy (TEM) analysis revealed nanowires grow in the (015) direction. Differential thermal test obtained Sb2Te3 nanowire melting point of 727.5K. Further studies on FTIR spectra showed that the structure of nanosheets weaved by Sb2Te3nanowires is better than that of nanosheets grown in bulk, and the growth mechanism of Sb2Te3 nanowires was preliminarily estimated.