期刊
RSC ADVANCES
卷 5, 期 60, 页码 48433-48441出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra04033g
关键词
-
资金
- key project of the National 863 High-tech R&D Program of China [2012AA062604]
- National Natural Science Foundation of China [51328803]
In this study, the synthesis of zeolitic imidazole framework (ZIF-8) in water was systematically studied using 6 zinc sources (Zn(OAc)(2), ZnSO4, Zn(NO3)(2), ZnCl2, ZnBr2, ZnI2), respectively, under different conditions at room temperature without using any additives. It was found that Zn(OAc)(2) is the best precursor and the resultant ZIF-8 particles have the best quality with rhombic dodecahedron morphology. The concentration of 2-methylimidazole (Hmim), molar ratio Hmim/Zn and water content all have significant impacts on the morphology, particle size, and crystallinity of ZIF-8. Further result analysis reveals that 3 key reactions are involved in the ZIF-8 formation which needs five steps in ZIF-8 structural evolution. This study provides a deep understanding of the crystallization process of ZIF-8 particles in a waterbased system.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据