纳米级孔道锆基MOFs的制备及其表征

Preparation of Zr-based MOFs with Nanoscale Pores and Their Characterization

使用成本低廉的商业化原料,通过微波法快速简易地合成两种具有四个苯环长度的双齿羧酸配体L_(1)与L_(2),再运用溶剂热法成功制备了两种相同结构的类UiO型锆基金属有机骨架(MOFs)材料Zr-L_(1)与Zr-L_(2).采用X射线粉末衍射、透射电子显微镜、核磁共振氢波谱、热重分析等表征手段探究了锆基MOFs的结构特征,结果表明其具有较为均匀、稳定的纳米级孔道.

Twobidentate carboxylic acids with different modified groups were simply prepared by using low-cost commercial chemicals in a microwave method,and then were used as ligands to produce two identical UiO-type MOFs Zr-L_(1) and Zr-L_(2).A series of techniques such as PXRD,TEM,SEM,NMR were used to explore the structural characteristics of Zr-based MOFs,which proved the uniform and stable nanoscale pores of these MOFs.