东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (6): 673-676.DOI: -

• 论著 • 上一篇    下一篇

不同离子对氧化锌晶体形貌的影响

张艳辉;田彦文;邵忠财;李慧莉;   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;沈阳理工大学环境与化学工程学院;东北大学材料与冶金学院 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110168;辽宁沈阳110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-06-15 发布日期:2013-06-23
  • 通讯作者: Zhang, Y.-H.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50174015)

Effects of different ions on morphology of ZnO crystals

Zhang, Yan-Hui (1); Tian, Yan-Wen (1); Shao, Zhong-Cai (2); Li, Hui-Li (1)   

  1. (1) School of Material and Metallurgy, Northeastern University, Shenyang 110004, China; (2) Faculty of Environment and Chemical Engineering, Shenyang Ligong University, Shenyang 110168, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-06-15 Published:2013-06-23
  • Contact: Zhang, Y.-H.
  • About author:-
  • Supported by:
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摘要： 以不同Zn盐Zn(CH3COO)2.2H2O,ZnCl2,ZnSO4.7H2O,Zn(NO3)2.6H2O与不同碱NaOH,KOH为原料,制得Zn(OH)42-前驱溶液,使之在水热环境下分解,生成ZnO晶体.产物通过全自动X射线衍射仪(XRD)进行物相分析,扫描电子显微镜(SEM)观测ZnO晶体的形貌和大小.170℃,溶液中的阴离子CH3COO-,SO42-,NO3-,Cl-分别与Na+构成干扰离子对,伴随着晶体生长12 h,晶体成长为片球集状、极性生长明显的花状、极性生长不明显的花状、小尺寸花状ZnO晶体;140℃,溶液中阳离子Na+,K+分别与CH3COO-作为离子对,干扰晶体生长,12 ...

关键词: 干扰离子, ZnO晶体, 水热法, 形貌, 控制生长

Abstract: Different Zn salts including Zn(CH3COO)2·2H2O, ZnCl2, Zn(NO3)2·6H2O and ZnSO4·7H2O and different alkalies including NaOH and KOH were used as raw materials to produce the precursory solution Zn(OH)42-, and ZnO crystals were synthesized when Zn(OH)42- decomposed in hydrothermal environment. The phase identification, morphology and size of the products were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The anions of CH3COO-, SO42-, NO3- and Cl- in the solution formed individually interfering ion pairs with Na+ at 170°C. The morphologies of ZnO crystals obtained along with their growth for 12 h are flake/ball-like aggregates, bloomy with obvious of unobvious polarity growth and small-size bloomy. In addition, the ion pairs formed individually by Na+, K+ and CH3COO- at 140°C interfered the crystal growing and, after reacting for 12 h, they were prepared into flaky and needle-like ZnO nanocrystals. It could be known from the analysis of SEM images that different interfering ions in the solution have great effects on the morphologies of ZnO crystals. And the interference mechanism of the interfering ions was analyzed simply.

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