| 环糊精类多孔材料对气体CO2的捕获研究 |
| γ-Cyclodextrin Porous Aromatic Frameworks Applied to Capture CO2 |
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| 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。 |
| 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 |
| 基金项目: 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。 |
| Abstract: According to the famous chemist Yaghi's theory, hydroxyl group possesses the specific adsorption for CO2. In this paper, we report the synthesis of novel γ-cyclodextrin porous aromatic frameworks (CD-PAF-1) based on γ-cyclodextrin 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 CO2. However, they do not adsorb N2 gas molecules. According to these features, CD-PAF-1 may be applied to capture and separate CO2 in industry. |
| Keywords: γ-cyclodextrin porous aromatic frameworks multiple polyhydroxy groups CO2 specific adsorption thermal stability solvent stability |
| 投稿时间：2013-01-19 修订日期：2013-05-17 |
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| 元野,任浩,孙福兴.环糊精类多孔材料对气体CO2的捕获研究[J].无机化学学报,2013,29(8):1645-1648. |
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