模板合成法制备TiO_2:Eu^(3+)纳米管及其发光特性研究  

Study of template synthesis and luminescence characteristics of TiO_2: Eu^(3+) nanotubes

作　　者：张国玺 

机构地区：[1]郑州幼儿师范高等专科学校理科教学部,河南郑州450000

出　　处：《功能材料与器件学报》2014年第5期158-163,共6页Journal of Functional Materials and Devices

摘　　要：以碳纳米管做模板,在不利用任何表面活性剂或催化剂情况下,通过溶剂热法成功合成均匀的TiO2:Eu3+纳米管。X射线衍射结果表明,该产物是TiO2的一种纯锐钛矿相。扫描电子显微镜及透射电子显微镜图像显示,所得到的TiO2:Eu3+纳米管在大小及分布上是均匀的,管壁的厚度约为8nm。提出了该纳米管可能的形成机制。发光光谱表明,由于5D0→7F2间的转换,TiO2:Eu3+纳米管会在612nm发出红光。此外,因为制备容易而且成本较低,这种合成路径还有望用来制备其他的一维无机纳米材料。Uniform TiO2 ：Eu^3＋ nanotubes have been successfully synthesized through a simple solvothermal process with carbon nanotubes （CNTs） as templates, free of any surfactant or catalyst. X- ray diffraction （XRD） results demonstrate that the product is a pure anatase phase of TiO2. Scanning electron microscopy （SEM） and transmission electron microscopy （TEM） images indicate that the as -obtained TiO2 ： Eu^3 ＋ nanotubes are uniform in size and distribution, and the thickness of the wall is about 8 nm. The possible formation mechanism has also been proposed. The luminescent spectrum shows that TiO2： Eu^3＋ nanotubes exhibit a red emission at 612 nm due to the 5D0 -7F2 transition. Furthermore, this synthetic route is promising for the preparation of other one - dimensional inorganic nanomaterials because of its simplicity and the low cost of the starting reagents.

关 键 词：TIO2 掺杂Eu3+的纳米管 碳纳米管 发光 

分 类 号：TB383[一般工业技术—材料科学与工程]