微波辅助加热法制备ZIF-8工艺研究  

Research of ZIF-8 synthesized by microwave assisted heating method

作　　者：李歆[1] 梁淑君[1] 翟燕[1] 杨云帆 Li Xin Liang Shujun Zhai Yan Yang Yunfan(Taiyuan Institute of Technology,Taiyuan 03000)

机构地区：[1]太原工业学院,太原030008

出　　处：《化工新型材料》2017年第10期145-147,共3页New Chemical Materials

基　　金：山西省高校科技研究开发项目(20121030);山西省回国留学人员科研资助项目(2012-107);太原工业学院院级科学基金项目(2015LQ01);山西省重点扶持学科建设经费资助项目(晋教研[2015]10号)

摘　　要：以六水合硝酸锌和2-甲基咪唑为原料,以二甲基甲酰胺(DMF)为溶剂,以丙酮为纯化试剂,通过微波辅助加热法合成沸石咪唑酯骨架材料-8(ZIF-8),并采用XRD、BET和SEM对制得产物的结构与性能进行表征分析。研究结果表明,微波辅助加热法制备ZIF-8晶体的最佳工艺条件:当六水合硝酸锌和2-甲基咪唑的摩尔配合比为1∶4、反应时间为50min、反应温度为130℃时,可制得形貌为六棱柱、结晶度较高、比表面积较大的ZIF-8晶体,产率达到43.76%,比表面积达到1878.48m2/g。The zeolitic imidazolate framework-8（ZIF-8）was synthesized by the method of microwave assisted heating with zinc nitrate hexahydrate and 2-methylimidazole as raw materials,N,N-Dimethylformamide as the reaction solvent and acetone as purification reagent.The structure and properties of samples were characterized by XRD,BET and SEM.The results showed that the optimum process condition for ZIF-8 synthesis by the microwave assisted heating method were：the zinc nitrate hexahydrate/2-methylimidazole molar ratio of 1/4,reaction time of 50 min and reaction temperature of 130℃.The obtained ZIF-8 crystal showed hexagonal prism morphology,higher crystallinity and larger surface area.The yield of ZIF-8 crystal was 43.76%.Its surface area was up to 1878.48 m2/g.

关 键 词：ZIF-8 微波辅助加热法 合成 

分 类 号：TB324[一般工业技术—材料科学与工程]