高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (8): 1753-1759.doi: 10.7503/cjcu20200010

• 研究论文:无机化学 • 上一篇    下一篇

无溶剂热处理固相转化法简易制备沸石咪唑酯骨架材料

徐伟1, 王积超1, 施广用1, CHAEMCHUEN Somboon1,2   

  1. 1. 武汉理工大学材料科学与工程学院, 武汉 430070;
    2. 武汉理工大学材料复合新技术国家重点实验室, 武汉 430070
  • 收稿日期:2020-01-07 出版日期:2020-08-10 发布日期:2020-04-28
  • 通讯作者: CHAEMCHUEN Somboon,男,博士,副教授,主要从事新型金属有机骨架材料的制备与催化应用研究.E-mail:sama_che@hotmail.com E-mail:sama_che@hotmail.com
  • 基金资助:
    国家自然科学基金(批准号:21850410449)资助.

Facile Preparation of Zeolitic Imidazole Frameworks by Thermal Treatment Solid-Phase Transformation

XU Wei1, WANG Jichao1, SHI Guangyong1, CHAEMCHUEN Somboon1,2   

  1. 1. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
    2. State Key Laboratory of Advanced Materials Composite Technology, Wuhan University of Technology, Wuhan 430070, China
  • Received:2020-01-07 Online:2020-08-10 Published:2020-04-28
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21850410449).

摘要: 设计开发了一种无需溶剂,通过热处理固相转化制备沸石咪唑酯骨架材料(ZIFs)的简易方法.该方法无需溶剂及其它预处理,只需将金属源与有机配体固相混合后于低温(200℃)热处理即可实现多孔晶体材料的制备.所合成材料H-ZIF-67为具有方纳石拓扑结构的纳米晶体,与传统方式合成的ZIFs材料一致.粉末X射线衍射(PXRD)分析结果表明产物的晶体结构与标准ZIFs谱图一致.通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、N2吸附-脱附分析、热重分析(TGA)和傅里叶变换红外光谱(FTIR)等手段对合成的材料进行了表征,发现H-ZIF-67材料具有与ZIFs材料类似的特性.该方法经济、高效,摒弃了传统方法合成ZIFs材料周期长、处理过程复杂的弊端,为ZIFs材料的量产提供了新思路.

关键词: 沸石咪唑酯骨架材料, 固相转化, 无溶剂合成, 热处理

Abstract: The facile synthesis of zeolitic imidazolate frameworks(H-ZIF-67) under fully avoided solvent and a short reaction was achieved. The solid-phase transformation of mixed metal and organic ligand sources during the heat treatment process was a crucial mechanism of synthesis strategy. The synthesized materials were characterized by means of powder-XRD, SEM, TEM, TGA, FTIR, porosity, and N2 adsorption-desorption analyses. The results illustrate the characteristic properties compatibility with the commercial methods for the preparation of ZIF-67 have been reported. The single-step, truly solvent-free, non-post treatment, short-time synthesis, and safety system as ambient pressure, were an advantage of this developed method.

Key words: Zeolite imidazolate framework material, Solid phase transformation, Solvent-free synthesis, Heat treatment

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