Double-Sided Comb-Like ZnO Nanostructures and Their Derivative Nanofern Arrays Grown by a Facile Metal Hydrothermal Oxidation Route

详细信息    查看全文

• 作者：Xiuyan Li ; Fenghua Zhao ; Junxiang Fu ; Xianfeng Yang ; Jing Wang ; Chaolun Liang ; Mingmei Wu
• 刊名：Crystal Growth & Design
• 出版年：2009
• 出版时间：January 7, 2009
• 年：2009
• 卷：9
• 期：1
• 页码：409-413
• 全文大小：284K
• 年卷期：v.9,no.1(January 7, 2009)
• ISSN：1528-7505

文摘

Double-sided comb-like ZnO nanoferns have been successfully synthesized via a one-step hydrothermal synthesis without using any catalysts or templates. Their structure and morphology were characterized by scanning electron microscopy, transmission electron microscopy, and Fourier fast transformation technique. A possible growth mechanism is proposed that the nanobranches are grown epitaxially from both (0001) side surfaces of a primarily formed backbone nanobelt. Photoluminescence and photocatalysis properties have been investigated at room temperature. The ZnO nanoferns exhibit enhanced visible emission and photocatalysis as compared to as-prepared ZnO nanorods. Typically, their photocatalysis can be comparable to commercial P-25, even higher than P-25. With a change of growth condition, more complex ZnO nanostructure arrays with additional secondary grown branches could be fabricated. The structural evolution of the hierarchically derivative ZnO nanofern arrays has been mentioned.