Department of Chemistry and Chemical Engineering, Malek Ashtar University of Technology, Shahid Babaei Highway, Lavizan, Tehran, Iran.
J Adv Res. 2015 Jul;6(4):571-7. doi: 10.1016/j.jare.2014.02.001. Epub 2014 Feb 8.
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 Å 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.
本文报道了一种简单、高效、实用的 CO2 捕获方法，该方法使用负载在胺功能化硅胶上的特定功能离子液体（IL）。结果表明，与均相 IL 相比，负载 IL/分子筛 4Å 体系中 CO2 的吸收容量和速率均显著提高。此外，还表明所制备的材料能够在至少 10 个循环中可逆地吸收二氧化碳，而没有明显的效率损失。胺基 IL 的存在和表面结合的胺基基团通过在介孔材料表面上形成氨基甲酸铵，增加了 CO2 吸收的容量，即使在 CO2/CH4 混合气体中也是如此。
