Controlled synthesis of hierarchical zeolitic imidazolate framework-GIS (ZIF-GIS) architectures
- Resource Type
- Authors
- Yi Zhang; Zhengwei Song; Qi Shi; Xiaozhen Kang; Jinxiang Dong
- Source
- CrystEngComm. 14:8280
- Subject
- Materials science
Aqueous solution
Geospatial topology
General Materials Science
Nanotechnology
General Chemistry
Condensed Matter Physics
Nest (protein structural motif)
Zeolitic imidazolate framework
- Language
- ISSN
- 1466-8033
We report the first example of the preparation of an ordered hierarchical zeolitic imidazolate framework nest architecture (denoted as ZIF-GIS). ZIF-GIS (Zn(eIm)0.65(dmbIm)1.35) is a novel compound with GIS topology and has been synthesized by using complementary ligands of 2-ethylimidazole (eIm) and 5,6-dimethylbenzimidazole (dmbIm) in several solution systems. ZIF-GIS which exhibits hierarchical and nest architectures was obtained by a solvothermal approach based on the mixed solvent of aqueous ammonia (NH3·H2O) and methanol (CH3OH). The apple-like hierarchical ZIF-GIS architectures with diameters of about 2–3 μm are built from numerous nanoplates with a thickness of about 20–40 nm. The results demonstrated that the formation of ordered hierarchical and nest architectures could be ascribed to the cooperation of NH3·H2O and CH3OH. This synthesis strategy in a mixed solvent might be extended to other systems for the synthesis of hierarchical ZIF or MOF architectures.