Cu-BTC/Al2O3复合材料的制备及其吸附甲烷性能  

Preparation of Cu-BTC/Al2O3 composites for adsorption methane

作　　者：赵亮[1] 王岩[1] 刘野[1] 陈益民[1] 王刚[1] 方向晨[1] Zhao Liang;Wang Yan;Liu Ye;Chen Yimin;Wang Gang;Fang Xiangchen(Sinopec Fushun Research Institute of Petroleum and Petrochemicals,Fushun Liaoning 113001,China)

机构地区：[1]中国石化抚顺石油化工研究院

出　　处：《石油化工》2019年第8期800-805,共6页Petrochemical Technology

基　　金：中国石油化工股份有限公司资助项目（115039）

摘　　要：采用原位浸渍法合成了Cu-BTC/Al2O3复合材料,利用XRD、SEM、N2吸附-脱附等方法比较了预置有机配体于载体对复合材料的性质及其吸附甲烷性能的影响。实验结果表明,预置有机配体有利于降低Cu^2+和BTC-的竞争吸附,使得较多的Cu-BTC晶体在Al2O3载体内部生成,保留了Cu-BTC的晶体结构特点和微孔结构特点,随着有机配体预置量的增加,复合材料的甲烷吸附量也增加。在298 K和3.5 MPa下,适宜的有机配体预置量为35%(w),Cu-BTC/Al2O3复合材料的最大甲烷吸附量为100.50 cm^3/g。Cu-BTC/Al2O3 composites were synthesized by in-situ impregnation method.The effects of presetting organic ligands in carriers on the properties of composites and their adsorption properties were compared by XRD,SEM and N2 adsorption-desorption.The results showed that the competitive adsorption between Cu^2+and BTC-can be weaken through presetting organic ligand,more Cu-BTC crystals can be generated inside the Al2O3,and crystal structure and microporous structure of Cu-BTC were preserved.As the amount of presetting organic ligand increased,CH4 adsorption capacity of the composite was also enhanced.The suitable quantity of presetting organic ligand was 35%(w)under 298 K and 3.5 MPa,the maximum CH4 uptake of the Cu-BTC/Al2O3 composite was 100.50 cm^3/g.

关 键 词：金属有机骨架材料 Cu-BTC AL2O3 复合材料 微孔结构 

分 类 号：TQ424.3[化学工程]