无溶剂热处理固相转化法简易制备沸石咪唑酯骨架材料

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.

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

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.