Synthesis and photo-catalytic degradation property of nanostructured-ZnO with different morphology
Synthesis and photo-catalytic degradation property of nanostructured-ZnO with different morphology
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DOI：
10.1016/j.matlet.2007.12.019
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发表时间：
2008-05
影响因子：
3
通讯作者：
Yuxin Wang;Xinyong Li;G. Lu;Guohua Chen;Yongying Chen
中科院分区：
文献类型：
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作者：
Yuxin Wang;Xinyong Li;G. Lu;Guohua Chen;Yongying Chen
在无表面活性剂的条件下，通过一种简单的相对低温方法，在90 °C下反应5h，成功地制备了不同形貌的ZnO纳米结构。使用不同浓度的氢氧化钠（NaOH）和不同量的水合肼（N2H4·H2O）可以很容易地对这些结构进行尾处理。X射线衍射（XRD）结果证明了ZnO具有纤锌矿结构。扫描电子显微镜（SEM）和透射电子显微镜（TEM）的微观结构表明，棒状和类棒状ZnO纳米结构中含有许多径向纳米棒，它们沿[0001]方向沿着生长。此外，所制备的ZnO纳米材料对典型持久性有机污染物（POPs）的光催化降解表现出较高的活性，表明其作为半导体光催化剂具有良好的应用前景。
ZnO nanostructures with different morphology have been successfully fabricated by a simple relative low temperature approach at 90 °C for 5 h without surfactant assistance. These structures can be easily tailed using varied concentrations of sodium hydroxide (NaOH) and different amounts of the hydrazine hydrate (N2H4·H2O). X-ray diffraction (XRD) result proves the formation of ZnO with wurtzite structure. Microstructure as revealed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) indicates that the rod-like and chrysanthemum-like ZnO nanostructures contain many radial nanorods, which grow along the [0001] direction. Furthermore, the as-prepared ZnO nanomaterials exhibit high activity on the photo-catalytic degradation of typical persistent organic pollutants (POPs), indicating that they are promising as semiconductor photo-catalysts.