Facile Synthesis of Flowerlike Cu2O Nanoarchitectures by a Solution Phase Route

详细信息    查看全文

• 作者：Yongsong Luo ; Suqin Li ; Qinfeng Ren ; Jinping Liu ; Lanlan Xing ; Yan Wang ; Ying Yu ; Zhijie Jia ; Jialin Li
• 刊名：Crystal Growth & Design
• 出版年：2007
• 出版时间：January 2007
• 年：2007
• 卷：7
• 期：1
• 页码：87 - 92
• 全文大小：1033K
• 年卷期：v.7,no.1(January 2007)
• ISSN：1528-7505

文摘

Novel flowerlike nanostructures consisting of Cu₂O nanopetals were successfully synthesized by a facile wet chemicalmethod for the first time. The synthesized products were systematically studied by X-ray powder diffraction, scanning electronmicroscopy, and transmission electron microscopy. The results showed that the nucleation and growth of the nanoflowers weregoverned by a nucleation-dissolution-recrystallization growth mechanism. It is noteworthy that the initially formed Cu₂O nanoparticleswithout addition of NaOH were crucial to the growth of the final nanoarchitectures. A UV-vis spectrum was used to estimate theband gap energies of the nanoflowers. Further control experiments were also carried out to investigate the factors that impact themorphology and size of the products. It was demonstrated that the concentrations of NaOH and cetyltrimethylammonium bromide(CTAB) play key roles in the formation of the as-synthesized nanoflowers. By adjusting the concentration of NaOH and CTAB,temperature, and the quantity of water, Cu₂O micrograss, nanorods, and pricky microrods can be synthesized accordingly. Ourstepwise synthetic method may shed some light on the design of other well-defined complex nanostructures.