Efficient and reversible CO2 capture by amine functionalized-silica gel confined task-specific ionic liquid system

被引:36
作者
Aboudi, Javad [1 ]
Vafaeezadeh, Majid [1 ]
机构
[1] Malek Ashtar Univ Technol, Dept Chem & Chem Engn, Tehran, Iran
关键词
CO2; absorption; Task-specific ionic liquid; Mesoporous material; Carbon dioxide fixation; CARBON-DIOXIDE; ADIPIC ACID; CYCLOHEXENE; OXIDATION; CATALYST;
D O I
10.1016/j.jare.2014.02.001
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Simple, efficient and practical CO2 capture method is reported using task-specific ionic liquid (IL) supported onto the amine-functionalized silica gel. The results have been shown that both the capacity and rate of the CO2 absorption notably increase in the supported IL/molecular sieve 4 angstrom system in comparison of homogeneous IL. Additionally, it has shown that the prepared material is capable for reversible carbon dioxide absorption for at least 10 cycles without significant loss of efficiency. The presence of the amine-based IL and the surface bonded amine groups increase the capacity of CO2 absorption even in a CO2/CH4 gas mixture through the formation of ammonium carbamate onto the surface of mesoporous material. (C) 2014 Production and hosting by Elsevier B.V. on behalf of Cairo University.
引用
收藏
页码:571 / 577
页数:7
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