Liu Guixia, Hong Guangyan
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
J Nanosci Nanotechnol. 2006 Jan;6(1):120-4.
Y2O3:RE3+(RE=Eu, Tb, Dy) porous nanotubes were first synthesized using carbon nanotubes as template. The morphology of the coated precursors and porous Y2O3:Eu3+ nanotubes was determined by scanning electron Microscopy (SEM) and transmission electron microscopy (TEM). It was found that the coating of precursors on carbon nanotubes (CNTs) is continuous and the thickness is about 15 nm, after calcinated, the Y2O3:Eu3+ nanotubes are porous with the diameter size in the range of 50-80 nm and the length in micrometer scale. X-ray diffraction (XRD) patterns confirmed that the samples are cubic phase Y2O3 and the photoluminescence studies showed that the porous rare earth ions doped nanotubes possess characteristic emission of Eu3+, Tb3+, and Dy3+. This method may also provide a novel approach to produce other inorganic porous nanotubes used in catalyst and sensors.
首先以碳纳米管为模板合成了Y2O3:RE3+（RE = Eu、Tb、Dy）多孔纳米管。通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）确定了包覆前驱体和多孔Y2O3:Eu3+纳米管的形貌。结果发现，前驱体在碳纳米管（CNT）上的包覆是连续的，厚度约为15 nm，煅烧后，Y2O3:Eu3+纳米管呈多孔状，直径尺寸在50 - 80 nm范围内，长度在微米尺度。X射线衍射（XRD）图谱证实样品为立方相Y2O3，光致发光研究表明，多孔稀土离子掺杂纳米管具有Eu3+、Tb3+和Dy3+的特征发射。该方法还可能为制备用于催化剂和传感器的其他无机多孔纳米管提供一种新途径。
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