Chen C S, Xie X D, Liu T G, Lin L W, Kuang J C, Xie X L, Lu L J, Cao S Y
J Nanopart Res. 2012 Mar;14(4):817. doi: 10.1007/s11051-012-0817-5. Epub 2012 Mar 28.
Multi-walled carbon nanotubes (MWNTs)/Cu-doped ZnO composite powders were prepared by co-precipitation method, and were characterized by X-ray diffraction, electron microscopy, fluorescence spectrum, and ultraviolet spectrum. Experimental results show that the MWNTs can be modified by Cu-doped ZnO nanoparticles with hexagonal wurtzite structure after annealed at 450 °C, and the nanoparticle size is about 15 nm. Two ultraviolet (UV) peaks and a green band centered at about 510 nm are observed in the fluorescence spectrum of MWNTs/Cu-doped ZnO composite powder annealed at 450 °C. Furthermore, MWNTs and Cu doping significantly improve the UV absorption ability of ZnO.
采用共沉淀法制备了多壁碳纳米管（MWNTs）/铜掺杂氧化锌复合粉末，并通过X射线衍射、电子显微镜、荧光光谱和紫外光谱对其进行了表征。实验结果表明，MWNTs在450℃退火后可被具有六方纤锌矿结构的铜掺杂氧化锌纳米颗粒修饰，纳米颗粒尺寸约为15nm。在450℃退火的MWNTs/铜掺杂氧化锌复合粉末的荧光光谱中观察到两个紫外（UV）峰和一个位于约510nm处的绿色带。此外，MWNTs和铜掺杂显著提高了氧化锌的紫外吸收能力。
