ZnO flower-like nanostructures have been successfully synthesized by a new and facile hydrothermal method. Their crystal structures and photocatalytic performance were also investigated. The amount of surfactant cetyltrimethyl ammonium bromide (CTAB) added to the precursor had an important effect on the ultimate morphology of the ZnO flower-like nanostructures. As the CTAB amount increased, the petals of the ZnO nanoflowers architecture changed from nanorods to nanosheets. In addition, for the nanoflowers assembled by nanosheets, the thickness of nanosheet can be controlled by adjusting the CTAB amount. The plausible growth mechanisms of the ZnO flower-like nanostructures were proposed. Furthermore, the nanosheets-assembled nanoflowers exhibited better photocatalytic performance than the nanorods-assembled nanoflowers toward Rhodamine B owning to their larger specific area and more OH groups absorbed on the nanosheet surface.

ZnO 花状纳米结构已通过一种新的、简便的水热方法成功合成。还研究了它们的晶体结构和光催化性能。添加到前体中的表面活性剂十六烷基三甲基溴化铵 (CTAB) 的量对 ZnO 花状纳米结构的最终形态有重要影响。随着 CTAB 量的增加，ZnO 纳米花结构的花瓣从纳米棒变为纳米片。此外，对于由纳米片组装而成的纳米花，可以通过调节CTAB用量来控制纳米片的厚度。提出了 ZnO 花状纳米结构的合理生长机制。此外，