Supercritical CO2 preparation of SBA-15 supported ionic liquid and its adsorption for CO2
Supercritical CO2 preparation of SBA-15 supported ionic liquid and its adsorption for CO2
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SBA-15负载离子液体的超临界CO2制备及其对CO2的吸附
DOI：
10.1088/2053-1591/aacdb4
复制
发表时间：
2018-06
影响因子：
2.3
通讯作者：
Xu Qin Qin
中科院分区：
文献类型：
--
作者：
Yin Jian Zhong;Zhen Meng Yuan;Cai Pei;Zhou Dan;Li Zhuo Jian;Zhu Hong Yue;Xu Qin Qin
离子液体是一种用于CO2捕集的绿色溶剂，将离子液体负载在多孔基底上可以增加离子液体与CO2的界面面积，降低气体扩散阻力，进一步降低离子液体的用量。以超临界CO为溶剂，乙醇为共溶剂，制备了离子液体[Bmim] BF 4和[Bmim]Ac在SBA-15上的固载化。并对传统的浸渍法进行了比较。结果表明，两种负载型离子液体对CO2的吸附量均随离子液体负载量的增加而增加，但超临界CO2法制备的负载型离子液体的吸附量高于浸渍法制备的负载型离子液体。在离子液体负载量相同的情况下，超临界CO2法制备的负载型离子液体具有更高的比表面积和孔容，从而促进CO2的吸收。对负载型离子液体进行了再生，结果表明负载型离子液体对CO2具有良好的循环稳定性。
Ionic liquids are a kind of green solvent for CO2 capture, and supporting ionic liquids on porous substrates can increase the interface area between ionic liquids and CO2, decrease the gas diffusion resistance, and further reduce the ionic liquids consumption. In this study, the immobilization of ionic liquids [Bmim]BF4 and [Bmim]Ac on SBA-15 were prepared with supercritical CO as solvent and ethanol as co-solvent. The traditional impregnation method was also compared. Results showed that the amount of CO2 adsorbed both increased with the increase of ionic liquid loading, while the adsorption for supported ionic liquids prepared by supercritical CO2 method was higher than that by impregnation method. With same ionic liquids loading amount, the supported ionic liquids prepared by supercritical CO2 method had higher specific surface area and pore volume, and promoted the absorption of CO2 accordingly. The supported ionic liquids were regenerated, which has been testified that the supported ionic liquids have well recycled stability for CO2 adsorption.
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DOI：
10.1016/0255-2701(88)80020-5
发表时间：
1988-10
期刊：
Chemical Engineering and Processing
影响因子：
--
作者：
G. Versteeg;W. V. Swaaij
通讯作者：
G. Versteeg;W. V. Swaaij
DOI：
10.1007/s11426-012-4632-8
发表时间：
2012-06
期刊：
Science China Chemistry
影响因子：
--
作者：
Lili Zhu;Lin Guo;Zhen-jiang Zhang;Ji Chen;Shaoming Zhang
通讯作者：
Lili Zhu;Lin Guo;Zhen-jiang Zhang;Ji Chen;Shaoming Zhang
影响因子：
3.7
作者：
Brennecke, JF;Maginn, EJ
通讯作者：
Maginn, EJ
影响因子：
4.2
作者：
Zhang, Zhengmin;Wu, Linbo;Zhu, Shiping
通讯作者：
Zhu, Shiping
影响因子：
3.9
作者：
Qin‐Qin Xu;Jianzhong Yin;Xuerong Zhou;Guangzhao Yin;Yifan Liu;P. Cai;Aiqin Wang
通讯作者：
Qin‐Qin Xu;Jianzhong Yin;Xuerong Zhou;Guangzhao Yin;Yifan Liu;P. Cai;Aiqin Wang