| 水热法一步合成纳米/微米级ZnO球 |
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| 引用本文： | 徐爽,孟庆辉,程继航.水热法一步合成纳米/微米级ZnO球[J].纳米技术与精密工程,2011,9(5):408-411. |
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| 作者姓名： | 徐爽 孟庆辉 程继航 |
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| 作者单位： | 空军航空大学电工电子教研室,长春,130022 |
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| 摘 要： | 采用水热法在较低的温度(160℃)下一步合成了高纯的六方相ZnO纳米/微米球,它们是由纳米颗粒聚合而成的.讨论其生长机制发现,在这个合成体系中,H2O起到了非常关键的作用.X射线衍射(XRD)谱中各衍射峰清晰且尖锐,说明ZnO结晶性能良好.扫描电子显微镜(SEM)、场发射扫描电子显微镜(FESEM)和透射电子显微镜(TEM)照片表明,在其他条件固定的情况下,可以通过调节三乙醇胺和水的体积比有效地控制ZnO球的尺寸和形状.紫外可见吸收光谱的吸收峰随着ZnO球直径的增加出现红移现象.
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| 关 键 词： | 水热法 ZnO 扫描电子显微镜 |
One-Step Hydrothermal Method to Synthesize Nano/Micro-Sized ZnO Spheresh |
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| XU Shuang,MENG Qing-hui,CHENG Ji-hang.One-Step Hydrothermal Method to Synthesize Nano/Micro-Sized ZnO Spheresh[J].Nanotechnology and Precision Engineering,2011,9(5):408-411. |
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| Authors: | XU Shuang MENG Qing-hui CHENG Ji-hang |
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| Affiliation: | XU Shuang,MENG Qing-hui,CHENG Ji-hang(Electrical and Electronic Teaching and Research Office,Aviation University of Air Force,Changchun 130022,China) |
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| Abstract: | Hexagonal wurtzite zinc oxide （ZnO） nano/micro-spheres formed by the aggregation of nanoparticles were synthesized with one-step hydrothermal method at relatively low temperature （ 160 ℃ ）. Analysis of the growth mechanism of ZnO spheres presents that H20 plays a key role in the synthetic system. The strong and sharp peaks in the X-ray diffraction （XRD） pattern confirm that the products are well-crystallized. Scanning electron microscope （SEM）, field emission scanning electron microscope （FESEM） and transmission electron microscope （TEM） images indicate that the size and shape of the as-obtained ZnO spheres can be effectively controlled in the proposed synthetic method by varying the volume ratio of triethanolamine to H20 with the other reaction conditions fixed. Ultraviolet-visible absorption spectra show that the absorption peak red-shifts with the increase of the average diameter of the spheres. |
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| Keywords: | hydrothermal method ZnO scanning electron microscope |
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