无机材料学报 ›› 2010, Vol. 25 ›› Issue (8): 806-810.DOI: 10.3724/SP.J.1077.2010.00806 CSTR: 32189.14.SP.J.1077.2010.00806

• 研究论文 • 上一篇    下一篇

多步离子交换法合成Zn-插层SrBi2Nb2O9衍生物

陈玉凤1,2, 周松华1, 杨晓晶2   

  1. (1. 南昌大学 化学系, 南昌 330031; 2. 北京师范大学 化学学院, 北京 100875)
  • 收稿日期:2009-12-09 修回日期:2010-01-21 出版日期:2010-08-20 网络出版日期:2010-07-19
  • 基金资助:

    江西省自然科学基金(2009GZC0085); 国家自然科学基金(20965006)

Synthesis of New Zn-containing Derivative by Multi-step Ion-exchanges

CHEN Yu-Feng 1,2, ZHOU Song-Hua 1, YANG Xiao-Jing 2   

  1. (1. Department of Chemistry, Nanchang University, Nanchang 330031, China; 2. College of Chemistry, Beijing Normal University, Beijing 100875, China)
  • Received:2009-12-09 Revised:2010-01-21 Published:2010-08-20 Online:2010-07-19

摘要:

对层状钙钛矿型化合物SrBi2Nb2O9依次进行H+/(BiO)+, 四甲基铵离子TMA+/H+, 及锌氨络离子Zn(NH3)42+/TMA+多步离子交换而获得含Zn衍生物. X射线衍射(XRD)结果显示出质子化产物和含Zn衍生物的衍射图谱与前驱物SrBi2Nb2O9的层状结构上的差异. 组成分析表明, 前驱物质子化后, Bi原子几乎全被抽出, 但也有少量的Sr损失. 紫外?可见吸收(UV-Vis)测量发现, 含Zn衍生物的紫外吸收边比质子化产物和前驱物的紫外吸收边明显向高能方向移动.

关键词: SrBi2Nb2O9, 质子化, 离子交换, 紫外-可见吸收

Abstract:

A new material, Zn-containing derivative from SrBi2Nb2O9, was synthesized by multi-step ion-exchanges with H+/(BiO)+, TMA+ (tetramethylammonium ions)/H+, and Zn(NH3)42+/TMA+ step by step. X-ray diffraction (XRD) patterns exhibite the difference in the layered structures among the precursor SrBi2Nb2O9 (SBN), its protonated product (HSN), and Zn-containing derivative (ZSN). The compositional analyses reveal the extraction of most of the bismuth atoms and the loss of a small part of the strontium atoms after protonation. The UV-Vis (ultraviolet-visible) absorption edge of the Zn-containing derivative shifts markedly to high energy compared with that of the precursor and its protonated product.

Key words: SrBi2Nb2O9, protonation, ion-exchange, UV-Vis absorption

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