机械合成
金属有机骨架
盐(化学)
锌
催化作用
沸石咪唑盐骨架
吸附
醋酸
溶解
化学工程
化学
咪唑酯
无机化学
溶剂
上部结构
材料科学
有机化学
工程类
球磨机
地质学
海洋学
作者
Shunsuke Tanaka,Takuya Nagaoka,Aya Yasuyoshi,Yasumichi Hasegawa,Joeri Denayer
标识
DOI:10.1021/acs.cgd.7b01211
摘要
An efficient and simple mechanosynthesis was proposed to synthesize zeolitic imidazolate-based metal organic framework ZIF-8 with hierarchical superstructure.The synthesis strategy is based on a concept that only uses precursor powders for ease of handling in the solid-solid mechanochemical reaction.The solvent-free conversion of ZnO to ZIF-8 could be accelerated by an addition of zinc acetate dihydrate as both a Zn source and a catalyst.The acid dissolution of ZnO and complex forming reaction between ionized Zn and 2-methylimidazole were facilitated by the hydrated water and acetic acid generated sequentially from zinc acetate dihydrate during the reaction process.The mechanochemically synthesized ZIF-8 with trimodal hierarchical porous structure exhibited excellent adsorption rate capabilities.The large-scale rapid production and enhanced adsorption performances make this salt-assisted mechanosynthesis a very promising candidate for the industrial application and shaping of metal organic frameworks.
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