Wang Xing, Yang Jiao, Shi Liuxue, Gao Meizhen
Key Laboratory for Magnetism and Magnetic Materials of MOE, School of Physical Science and Technology, Lanzhou University, 730000, Lanzhou, People's Republic of China.
Nanoscale Res Lett. 2016 Dec;11(1):125. doi: 10.1186/s11671-016-1278-z. Epub 2016 Mar 3.
A green synthesis for nanoleave, nanosheet, spindle-like, rugby-like, dandelion-like and flower-like CuO nanostructures (from 2D to 3D) is successfully achieved through simply hydrothermal synthetic method without the assistance of surfactant. The morphology of CuO nanostructures can be easily tailored by adjusting the amount of ammonia and the source of copper. By designing a time varying experiment, it is verified that the flower- and dandelion-like CuO structures are synthesized by the self-assembly and Ostwald ripening mechanism. Structural and morphological evolutions are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-visible diffuse reflectance spectra. Additionally, the CuO nanostructures with different morphologies could serve as a potential photocatalyst on the photodecomposition of rhodamine B (RhB) aqueous solutions in the presence of H2O2 under visible light irradiation.
通过简单的水热合成方法，在无表面活性剂辅助的情况下，成功实现了纳米叶状、纳米片状、纺锤状、橄榄球状、蒲公英状和花状的CuO纳米结构（从二维到三维）的绿色合成。通过调节氨的用量和铜源，可以轻松地调整CuO纳米结构的形态。通过设计一个随时间变化的实验，证实了花状和蒲公英状的CuO结构是通过自组装和奥斯特瓦尔德熟化机制合成的。通过X射线衍射（XRD）、扫描电子显微镜（SEM）和紫外可见漫反射光谱研究了结构和形态的演变。此外，不同形态的CuO纳米结构在可见光照射下，在H2O2存在的情况下，可作为罗丹明B（RhB）水溶液光分解的潜在光催化剂。
