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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (15): 1476-1480. 上一篇    下一篇

研究论文

微波固相合成氧化锌纳米棒

刘劲松, 曹洁明*, 李子全, 柯行飞   

  1. (南京航空航天大学材料科学与技术学院纳米材料研究所 南京 210016)
  • 投稿日期:2006-08-09 修回日期:2006-12-25 发布日期:2007-08-14
  • 通讯作者: 曹洁明

Microwave-assisted Solid-state Synthesis of ZnO Nanorods

LIU Jin-Song; CAO Jie-Ming*; LI Zi-Quan; KE Xing-Fei   

  1. (Nanomaterials Research Institute, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016)
  • Received:2006-08-09 Revised:2006-12-25 Published:2007-08-14
  • Contact: CAO Jie-Ming

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被引次数

38 | 4

通过前驱体的微波固相热分解法快速合成了氧化锌纳米棒, 其直径在60～385 nm之间, 长可达数微米. 前驱体则通过一步室温固相反应制备. 用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、能量色散X射线分析(EDX)和透射电子显微镜(TEM)对产物的结构和形貌进行了表征. 同时, 对氧化锌纳米棒的光致发光(PL)性能作了测试, 结果表明在355 nm处有一个明显的近带隙发射峰. 另外, 对比实验表明, 微波辐射在氧化锌纳米棒的形成过程中起了关键性作用, 并对其形成机理进行了初步探讨.

关键词: 微波固相反应, 氧化锌, 纳米棒, 形成机理

ZnO nanorods were successfully synthesized by microwave-assisted solid-state reaction, and the nanorods are about 60～385 nm in diameter and several microns in length. The precursor was obtained by one-step room temperature solid-state reaction between Zn(CH3COO)2•2H2O and Na2CO3 in the presence of PEG400. The products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and transmission electron microscopy (TEM). The photoluminescence (PL) spectrum of the ZnO nanorods ex-hibits a strong near-band-edge emission at 355 nm. Compared with conventional heating, microwave radia-tion played an important role in formation of ZnO nanorods. In addition, formation mechanism of such ZnO nanorods was also discussed in brief.

Key words: microwave-assisted solid-state reaction, ZnO, nanorod, formation mechanism