Mg-MOF-74对CO_2/H_2O的吸附性能  

Adsorption Property of Mg-MOF-74 for CO_2/H_2O

作　　者：杜涛[1] 龙渊[1] 汤琦[1] 李生璐 刘丽影[1] DU Tao LONG Yuan TANG Qi LI Shenglu LIU Liying(State Environmental Protection Key Laboratory of Eco-lndastry, Northeastern University, Shenyang 110819, China)

机构地区：[1]东北大学国家环境保护生态工业重点实验室,沈阳110819

出　　处：《高等学校化学学报》2017年第2期225-230,共6页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:51474067;51406029);教育部基本科研业务费(批准号:N150204015);辽宁省教育厅重点实验室基础研究项目(批准号:LZ2015032);国家重点研究发展计划项目(批准号:2016YFB0601301;2016YFB0601305)资助~~

摘　　要：以Mg(NO_3)_2·6H_2O和2,5-二羟基对苯二甲酸为原料,采用溶剂热法制备了金属有机骨架材料Mg-MOF-74.利用X射线衍射(XRD)、红外光谱(FTIR)和扫描电子显微镜(SEM)等测试手段对其结构、形貌和性能进行了分析,并利用自制穿透实验装置研究了产物吸附CO_2/H_2O的性能.结果表明:合成的样品纯度高,结构完整,形貌规则有序,具有较高的CO_2吸附量.双组分CO_2/H_2O穿透实验结果证实,在水蒸气存在情况下,与沸石13X相比,Mg-MOF-74仍具有较高的CO_2吸附能力,可用于分离高湿烟道气中的CO_2.Mg-MOF-74 was synthesized through a solvothermal method using Mg（ NO3）2·6H2O and 2,5-dihydroxyterephthalic acid as raw materials. The product was then characterized via X-ray diffraction（ XRD）,Fourier transform infrared（ FTIR） spectroscopy,scanning electron microscopy（ SEM） and breakthrough experiments. The results show that pure Mg-MOF-74 with complete structure,regular morphology and excellent CO2 adsorption properties was prepared. It is confirmed in breakthrough experiments that the as-synthesized Mg-MOF-74 maintains a high CO2 adsorption properties in the presence of H2O. Therefore,the prepared Mg-MOF-74 is a suitable candidate for capturing CO2 from wet flue gas stream.

关 键 词：Mg-MOF-74 穿透实验 CO2/H2O双组分吸附 

分 类 号：O647[理学—物理化学] O614[理学—化学]