高等学校化学学报

高等学校化学学报

• 研究简报 • 上一篇    下一篇

微波加热在高岭石表面制备ZnO纳米微晶及其机理分析

张先如, 顾晓文, 孙嘉, 徐政   

  1. 同济大学材料科学与工程学院微电子材料研究所, 上海 200092
  • 收稿日期:2005-09-21 修回日期:1900-01-01 出版日期:2006-08-10 发布日期:2006-08-10
  • 通讯作者: 徐政

Preparation of Nanocrystalline ZnO on the Surface of Kaolinite by Microwave Heating and Mechanism Analyses for Its Formation

ZHANG Xian-Ru, GU Xiao-Wen, SUN Jia, XU Zheng   

  1. Research Institute of Microelectronic Materials, School of Material Science and Engineering, Tongji University, Shanghai 200092, China
  • Received:2005-09-21 Revised:1900-01-01 Online:2006-08-10 Published:2006-08-10
  • Contact: XU Zheng

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被引次数

2

摘要： 报道了一种新的制备纳米氧化锌的方法, 即在微波辐射条件下, 将熔融态聚乙二醇(PEG)直接插入到高岭石层间, 继续延长辐射时间使高岭石发生剥片. 以剥片的高岭石片晶为模板, 经微波加热水解, 在其表面合成了簇状纳米氧化锌晶须.

关键词: 微波, 高岭石, ZnO, 簇状晶须

Abstract: ZnO nano-powders was prepared on the surface of exfoliated kaolinite(with the precursor solution of ZnAc2·2H2O and ammonia) via microwave heating hydrolysis method, the nanocrystalline ZnO was characterized by using XRD, FTIR, TEM and their formation mechanism was proposed. The results indicate that the products are composed of hexagonal-phased ZnO. The morphology of ZnO is rod-like without exfoliated kaolinite(length is 100—200 nm, diameter is 50—80 nm) as well as is cluster whisker-like in the presence of exfoliated kaolinite(length is 200—350 nm, diameter is 40—60 nm). The infrared absorption of the latter was enhanced apparently. The formation mechanism of the nanocrystalline ZnO synthesized by this method was also suggested.

Key words: Microwave, Kaolinite, ZnO, Cluster whisker

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