物理化学学报 >> 2005, Vol. 21 >> Issue (06): 668-672.doi: 10.3866/PKU.WHXB20050618

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离子液体中不同形貌ZnO纳米材料的合成及表征

曹洁明; 王军; 房宝青; 郑明波; 陆红霞; 常欣; 王海燕   

  1. 南京航空航天大学材料科学与技术学院, 纳米材料研究所, 南京 210016
  • 收稿日期:2004-10-14 修回日期:2004-11-22 发布日期:2005-06-15
  • 通讯作者: 曹洁明 E-mail:jmcao@nuaa.edu.cn

Synthesis and Characterization of ZnO Nanomaterials with Different Morphologies in Ionic Liquids

CAO Jie-ming; WANG Jun; FANG Bao-qing; ZHENG Ming-bo; LU Hong-xia; CHANG Xin; WANG Hai-yan   

  1. Nanomaterials Research Institute, College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016
  • Received:2004-10-14 Revised:2004-11-22 Published:2005-06-15
  • Contact: CAO Jie-ming E-mail:jmcao@nuaa.edu.cn

摘要: 在不同的咪唑基离子液体中通过微波加热合成出了ZnO的片状聚集体、棒状聚集体和塔棒聚集体等纳/微米结构, 考察了不同合成条件对ZnO形貌的影响, XRD表明产物为六方相纤锌矿ZnO结构, SEM和TEM表明产物形貌主要分为片的聚集体和棒的聚集体, 电子衍射表明ZnO棒具有单晶结构, 片的聚集体的PL谱表明在室温下这种形貌的ZnO具有很强的绿光发射和弱紫外光发射现象.

关键词: 离子液体, ZnO, 纳米材料, 微波加热

Abstract: ZnO nano/microstructures of different morphologies have been synthesized by using Zn(OH)42- and different ionic liquids with the aid of microwave irradiation. The as-prepared samples are characterized by X-ray diffraction (XRD), scanning electron microcopy (SEM), transmission electron microscopy (TEM), and photoluminescence(PL). The XRD pattern shows that the asprepared samples have hexagonal structures, SEM and TEM images demonstrate that sheet and rod aggregates of ZnO are formed. SAED(selected area electron diffraction) images of rods indicate the single crystal nature, and the PL spectrum of ZnO nanosheet aggregates exhibits a weak ultraviolet emission and a strong green emission at room temperature.

Key words: Ionic liquids, ZnO, Nanomaterials, Microwave heating