A simple and efficient method for synthesizing te nanowires from CdTe nanoparticles with EDTA as shape controller under hydrothermal condition
A simple and efficient method for synthesizing te nanowires from CdTe nanoparticles with EDTA as shape controller under hydrothermal condition
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DOI：
10.1155/2012/751519
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发表时间：
2012
影响因子：
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通讯作者：
Fangfang Xue;Ning Bi;Jiangong Liang;Heyou Han
中科院分区：
文献类型：
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作者：
Fangfang Xue;Ning Bi;Jiangong Liang;Heyou Han
采用乙二胺四乙酸二钠盐（EDTA）作为形貌控制剂，在水热条件下，以CdTe纳米粒子为原料，发展了一种简单有效的合成Te纳米线的方法。通过电感耦合等离子体质谱、X射线衍射和拉曼光谱分析证明，该体系既能完成对碲的转化，又能通过调节EDTA的浓度来降低CdTeS的干扰。结果表明，所制备的Te纳米线在蓝紫光区具有较强的荧光发射。纳米线具有良好的形貌，平均直径约为100 μ m。30nm，长度可达微米级。此外，还讨论了CdTe纳米颗粒向Te纳米线转化的可能机制。
We developed a simple and efficient method for synthesizing Te nanowires from CdTe nanoparticles with ethylenediaminetetraacetic acid disodium salt dehydrate (EDTA) as shape controller under hydrothermal condition. The systemcould both complete the transformation to Te and reduce the interference of CdTeS by adjusting the concentration of EDTA, which was proved by inductively coupled plasma mass spectrometry, X-ray diffraction patterns, and Raman spectra. It was found that the as-prepared Te nanowires display strong fluorescence emission in the blue-violet region. The nanowires exhibit a pretty good morphology with the average diameter of ca. 30nm and a length up to micrometer scale. Moreover, a possible transformation mechanism of CdTe nanoparticles into Te nanowires is also discussed.