Rational synthetic strategy: From ZnO nanorods to ZnS nanotubes
Rational synthetic strategy: From ZnO nanorods to ZnS nanotubes
复制标题
DOI：
10.1016/j.jssc.2009.07.038
复制
发表时间：
2009-10
影响因子：
3.3
通讯作者：
Ran Yi;G. Qiu;Xiaohe Liu
中科院分区：
文献类型：
--
作者：
Ran Yi;G. Qiu;Xiaohe Liu
我们在这里证明，ZnS纳米管可以成功地合成通过一个简单的转换过程从ZnO纳米棒前体。在转化过程中，首先制备ZnO纳米棒作为牺牲模板，然后以硫代乙酰胺（TAA）为硫源，通过水热硫化处理将其转化为管状ZnO/ZnS核/壳纳米复合材料。通过KOH处理去除管状ZnO/ZnS核/壳纳米复合物的ZnO核，最终得到ZnS纳米管。光致发光（PL）的表征表明，所制备的产品的管状ZnO/ZnS核/壳纳米复合材料的PL发射大大增强与它们的组分对应物相比。根据实验结果提出了转化过程的可能机理。
We demonstrate here that ZnS nanotubes can be successfully synthesized via a facile conversion process from ZnO nanorods precursors. During the conversion process, ZnO nanorods are first prepared as sacrificial templates and then converted into tubular ZnO/ZnS core/shell naonocomposites through a hydrothermal sulfidation treatment by using thioacetamide (TAA) as sulfur source. ZnS nanotubes are finally obtained through the removal of ZnO cores of tubular ZnO/ZnS core/shell naonocomposites by KOH treatment. The photoluminescence (PL) characterization of the as-prepared products shows much enhanced PL emission of tubular ZnO/ZnS core/shell nanocomposites compared with their component counterparts. The probable mechanism of conversion process is also proposed based on the experimental results.