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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

花状ZnO超细结构的水热自组装

江 浩1, 胡俊青2, 顾 锋1, 李春忠1   

  1. 1. 超细材料制备与应用教育部重点实验室，华东理工大学 材料科学与工程学院， 上海 200237; 2. 纤维材料改性国家重点实验室，东华大学 材料科学与工程学院， 上海 200051
  • 收稿日期:2008-04-22 修回日期:2008-06-05 出版日期:2009-01-20 网络出版日期:2009-01-20

Self-assembly of ZnO Nanorod Bundles into Flowerlike Architectures by a Simple Hydrothermal Route

JIANG Hao1, HU Jun-Qing2, GU Feng1, LI Chun-Zhong1   

  1. 1. Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China; 2. College of Materials Science and Engineering, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 200051, China
  • Received:2008-04-22 Revised:2008-06-05 Published:2009-01-20 Online:2009-01-20

PDF (PC)

2318

被引次数

38 | 4

摘要： 通过简单的水热合成路线，合成出由ZnO纳米棒束组装的花状结构.其组成结构单元ZnO纳米棒沿［001］晶向生长，呈很好的单晶结构.大部分纳米棒直径约为500nm，长约6.0μm.研究结果表明，在无水乙二胺存在的条件下，氨水（28%, v/v）在ZnO花状结构的形成过程中起到了至关重要的作用.调节氨水的含量,组成结构单元ZnO纳米棒可以组装成不同的花状结构.当加入氨水的量使得溶液的pH值达到10时,即可得到由ZnO纳米棒束组装成的花状结构,并简单讨论了这种花状结构的形状结构的形成机理.

关键词: ZnO, 花状结构, 水热法, 自组装

Abstract: The self-assembly of ZnO nanorod bundles into interesting flowerlike architectures were achieved via a simple hydrothermal route. The as-prepared samples were characterized by X-ray powder diffraction (XRD), scanning electron microscope (SEM), and high-resolution transmission electron microscope (HRTEM). The composed ZnO nanorods, as self-assembly building blocks, are single crystals nature with the c-axis growth crystallographic direction. And most of them have diameters of 500nm and lengths of 6.0μm. The results indicate that commercial ammonia (28%) plays an important role in the formation of the flowerlike architectures in the present of ethylenediamine. When pH value is about 10 adjusted by the addition of ammonia, self-assembly of ZnO nanorod bundles into flowerlike architectures are obtained. With the further increase of the content of ammonia, self-assembly of ZnO nanorods into different flowerlike architectures are synthesized. A possible growth mechanism of the flowerlike ZnO architectures is proposed.


Key words: znic oxide, flowerlike architectures, hydrothermal method, self-assembly

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