文章基本信息

标题：CO2 separation using composites consisting of 1-butyl-3-methylimidazolium tetrafluoroborate/CdO/1-aminopyridinium iodide
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作者：Hyun Young Kim ; Sang Wook Kang
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2019
卷号：9
期号：1
页码：1-7
DOI：10.1038/s41598-019-53002-x
出版社：Springer Nature
摘要：1-Aminopyridinium iodide (iodine salt) was used in CO 2 separation composites consisting of CdO and 1-butyl-3-methylimidazolium tetrafluoroborate (BMIM + BF 4 - ). Using iodine salt, the separation performance was largely improved. The CO 2 /N 2 selectivity was 64.6 and the permeance of CO 2 gas was 22.6 GPU, which was about twice that of BMIM + BF 4 - /CdO composites without addition of iodine salt. These results were due to the both effect of iodine salt on the transport of the N 2 molecules by the cyclic ring compound and the promoting transport of CO 2 molecules by the amine groups. Moreover, the oxide layer on the surface of the CdO could enhance the CO 2 solubility, resulting in the enhancement of separation performance. The mechanical and chemical properties were measured using SEM, Raman, TGA and FT-IR. The cross-section of coated membranes was confirmed by SEM. The coordinative interactions of iodine salts with BMIM + BF 4 - /CdO composite were observed by Raman.