环糊精类多孔材料对气体CO_2的捕获研究  

γ-Cyclodextrin Porous Aromatic Frameworks Applied to Capture CO_2

作　　者：元野[1] 任浩[1] 孙福兴[1] 

机构地区：[1]吉林大学无机合成与制备国家重点实验室,长春130012

出　　处：《无机化学学报》2013年第8期1645-1648,共4页Chinese Journal of Inorganic Chemistry

基　　金：吉林大学"挑战杯"大学生课外学术科技作品竞赛项目(No.450060487477)资助项目

摘　　要：本报导中,以γ-环糊精作为建筑基块,采用最常见的醇羟基脱水反应,合成了一种环糊精类多孔材料CD-PAF-1,通过FTIR,TGA,PXRD,SEM及气体吸附对该化合物的结构及性质进行表征,CD-PAF-1具有优良的热稳定性。另外,由于成功地在该材料骨架中引入了大量对CO2具有选择性吸附的羟基基团,基于这一特点,该材料可广泛的应用于气体CO2的捕获与分离应用。According to the famous chemist Yaghi＇s theory, hydroxyl group possesses the specific adsorption for COz In this paper, we report the synthesis of novel T-cyclodextrin porous aromatic frameworks （CD-PAF-1） based on T- cyelodextrin as building units with hydroxyl dehydration reaction. The material was characterized by fourier transform infrared spectroscopy （FTIR）, thermogravimetric analysis （TGA）, powder X-ray diffraction （PXRD）, scanning electron microscopy （SEM）, CO2 and N2 gas sorption. A TG analysis showed that CD-PAF-1 is thermally stable up to 220℃ in air. CD-PAF-1 also has a high chemical stability and cannot be dissolved or decomposed in common solvents or concentrated hydrochloric acid. As we designed, hydroxyl groups in the skeletons adsorb a large amount of CO〉 However, they do not adsorb N2 gas applied to capture and separate C02 in industry. molecules. According to these features, CD-PAF-1 may be

关 键 词：环糊精类多孔材料 多羟基基团 CO2选择性吸附 热稳定性 溶剂稳定性 

分 类 号：O633.11[理学—高分子化学]