Microwave-assisted Ionothermal Synthesis and Characteriza- tion of Zeolitic Imidazolate Framework-8  

作　　者：杨丽莎 卢惠民 

机构地区：[1]School of Materials Science and Engineering,Beihang University,Beijing 100191,China

出　　处：《Chinese Journal of Chemistry》2012年第5期1040-1044,共5页中国化学（英文版）

摘　　要：The zeolitic imidazolate framework-8 （ZIF-8） was successfully synthesized using ionic liquids as struc- ture-directing agent under microwave irradiation. Ionic liquids are green solvents with low vapour pressure and good thermal stability. They are appropriate templates for microporous materials and ideal microwave absorbers. The microwave-assisted ionothermal synthesis applied in this paper was expected to be a promising method for the preparation of microporous materials. Results showed that the as-synthesized samples （300---500 nm in diameter） could be synthesized in a short time （60 min） and possessed regular morphology, stable structure and high thermal stability （up to 720 ~C in argon atmosphere）. Nitrogen adsorption-desorption test illustrated that samples produced by microwave heating had a higher surface area. Carbon dioxide adsorption test indicated that the samples synthe- sized by microwave heating had better carbon dioxide adsorption ability than those by conventional heating.The zeolitic imidazolate framework-8 （ZIF-8） was successfully synthesized using ionic liquids as struc- ture-directing agent under microwave irradiation. Ionic liquids are green solvents with low vapour pressure and good thermal stability. They are appropriate templates for microporous materials and ideal microwave absorbers. The microwave-assisted ionothermal synthesis applied in this paper was expected to be a promising method for the preparation of microporous materials. Results showed that the as-synthesized samples （300---500 nm in diameter） could be synthesized in a short time （60 min） and possessed regular morphology, stable structure and high thermal stability （up to 720 ~C in argon atmosphere）. Nitrogen adsorption-desorption test illustrated that samples produced by microwave heating had a higher surface area. Carbon dioxide adsorption test indicated that the samples synthe- sized by microwave heating had better carbon dioxide adsorption ability than those by conventional heating.

关 键 词：microporous materials ionic liquids MICROWAVE carbon dioxide adsorption ZIF-8 

分 类 号：O646.1[理学—物理化学] TQ325.2[理学—化学]