Synthesis and photocatalytic activity of Zn2SnO4 nanotube arrays
Synthesis and photocatalytic activity of Zn2SnO4 nanotube arrays
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DOI：
10.1039/c3ta12388j
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发表时间：
2013-10
影响因子：
--
通讯作者：
Liang Shi;Yumei Dai
中科院分区：
文献类型：
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作者：
Liang Shi;Yumei Dai
以氧化锌纳米棒阵列为模板，采用水热法制备了高度有序的锌锡纳米管。所制备的纳米管的尖端是全封闭的，管壁厚度约为20 nm。对含时反应结果的研究表明，从氧化锌纳米棒到纳米管的形状演化可能是由Kirkendall效应驱动的。结果表明，该纳米管具有高效的光催化活性。通过X射线粉末衍射、透射电子显微镜、阴极发光、扫描电子显微镜、拉曼光谱和紫外-可见光谱对产物进行了完整的结构和形貌表征。
Highly ordered Zn2SnO4 nanotubes have been fabricated via a convenient hydrothermal approach by using a ZnO nanorod array as the template. The tips of the as-prepared nanotubes are all round sealed and the wall thickness of the nanotubes is about 20 nm. The study of time-dependent reaction results indicates that the shape evolution from ZnO nanorods to Zn2SnO4 nanotubes could be driven by the Kirkendall effect. The Zn2SnO4 nanotubes were found to have highly efficient photocatalytic activity. A complete structural and morphological characterization of the products was performed based on the results of X-ray powder diffraction, transmission electron microscopy, cathodoluminescence, scanning electron microscopy, Raman and UV-Vis spectroscopy.