Amine-functionalized mesoporous UiO-66 aerogel for CO_(2) adsorption  

作　　者：Mengge Shang Jing Zhang Jinqiang Sun Shimo Yu Feng Hua Xiaoxu Xuan Xun Sun Serguei Filatov Xibin Yi 

机构地区：[1]Shandong Key Laboratory for Special Silicon-containing Material,Advanced Materials Institute,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250014,China [2]Key Laboratory of High Efficiency and Clean Mechanical Manufacture,Ministry of Education,National Demonstration Center for Experimental Mechanical Engineering Education at Shandong University,School of Mechanical Engineering,Shandong University,Jinan 250061,China [3]Laboratory of Hydrogen Energy,Institute of Heat and Mass Transfer of the National Academy of Sciences of Belarus,Minsk 220072,Belarus

出　　处：《Chinese Journal of Chemical Engineering》2023年第2期36-43,共8页中国化学工程学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (21603125);Science-Education-Industry Integration Innovation Pilot Project of Qilu University of Technology (2020KJC-GH13);International Cooperation Project of Shandong Academy of Sciences (2019GHPY09);Natural Science Foundation of Shandong Province (ZR2019BEM025);Young doctor Cooperation Foundation of Qilu University of Technology (Shandong Academy of Sciences) (2019BSHZ0016)。

摘　　要：A mesoporous UiO-66-NH_(2) aerogel is prepared via a straightforward sol-gel method without using any binders or mechanical pressures, in which the amine groups are directly introduced into the matrix by using 2-aminoterephthalic acid. The novel UiO-66-NH_(2) aerogel also exhibits high specific surface area and mesopore-dominated structure, implying its highly potential use in CO_(2) adsorption. For ulteriorly investigating the effect of amine loading on the CO_(2) adsorption ability, a series of UiO-66-NH_(2) aerogel with different amino content is fabricated by changing the ligand/metal molar ratio. When the molar ratio is 1.45, the CO_(2) adsorption capacity reaches the optimum value of 2.13 mmol·g^(-1) at 25 ℃ and 0.1 MPa, which is 12.2% higher than that of pure UiO-66 aerogel. Additionally, UiO-66-NH_(2)-1.45 aerogel also has noticeable CO_(2) selectivity against N_(2) and CH_(4) as well as good regeneration stability. Such results imply that it has good application prospect in the field of CO_(2) adsorption, and also contains the potential to be applied in catalysis, separation and other fields.

关 键 词：UiO-66-NH_(2)aerogel Sol–gel method Amine groups Nanostructure Carbon dioxide ADSORPTION 

分 类 号：X701[环境科学与工程—环境工程] TQ427.26[化学工程] O647.3[理学—物理化学]