功能化基团对MIL-53上CO_2吸附行为的影响研究  

Influence of functional group of Al-MIL-53 on their CO_2 adsorption behavior

作　　者：颜星[1] 薛腾[2] 刘永生[1] 杨杰[1] Yan Xing Xue Teng Liu Yongsheng Yang Jie(School of Mathematics and Physics,Shanghai University of Electric Power, Shanghai 200090 School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062)

机构地区：[1]上海电力学院数理学院,上海200090 [2]华东师范大学化学与分子工程学院,上海200062

出　　处：《化工新型材料》2016年第12期85-87,共3页New Chemical Materials

基　　金：国家自然科学基金资助项目(11374204);上海市科委重点项目(13ZR1417900;14520501000)

摘　　要：采用一步合成法在Al-MIL-53骨架中引入功能化基团—NH2、—Cl、—NO_2和—OH,研究了各基团对AlMIL-53上CO_2吸附性能的影响。结果表明:引入上述4种基团明显增强了Al-MIL-53骨架和CO_2分子间的相互作用强度。除—OH外,3种基团的存在提高了材料的CO_2吸附容量。—OH功能化Al-MIL-53的低CO_2吸附容量可能是由于—OH的引入造成孔堵塞所致。Mono-functional groups including NH2 ,--Cl,--NO2 and --OH were introduced into Al-MIL-53 and the effect of these functional groups on the isosteric heat of CO2 adsorption of Al-MIL-53 was explored. The results revealed that the introduction of NH2 , CI,--NO2 and --OH improved the isosteric heat of CO2 adsorption of Al-MIL- 53, resulting in higher CO2 adsorption capacities （except for --OH functionalized Al-MIL-53）. The low CO2 adsorption ca- pacity of --OH functionalized Al-MIL-53 may be due to the pore blockage effect by OH group.

关 键 词：金属有机骨架化合物 功能化基团 CO2吸附容量 吸附热 

分 类 号：O647.3[理学—物理化学]