Enhanced CO2 capture by binary systems of pyridinium-based ionic liquids and porous ZIF-8 particles

doi:10.1016/j.jct.2018.08.038

	Enhanced CO2 capture by binary systems of pyridinium-based ionic liquids and porous ZIF-8 particles
	Wang, Xue 1,2; Shang, Dawei 1; Zeng, Shaojuan 1; Wang, Yuanming 2; Zhang, Xiaochun 1; Zhang, Xiangping 1; Liu, Jindun 2
刊名	JOURNAL OF CHEMICAL THERMODYNAMICS
	2019
卷号	128 页码:415-423
关键词	Ionic liquids CO2 Absorption Adsorption
ISSN号	0021-9614
DOI	10.1016/j.jct.2018.08.038
英文摘要	Absorption and adsorption technology as widely used methods have been reported for carbon dioxide (CO2) separation. In order to combine the advantages of absorption and adsorption methods, ionic liquids (ILs) as absorption function and zeolitic imidazolate framework-8 (ZIF-8) as adsorption function were integrated into a slurry to efficiently capture CO2 by the absorption-adsorption method. In this study, two pyridinium-based ILs, [C4Py][NTf2] and [C4Py][N(CN)(2)] were synthesized, and mixed with different concentration of ZIF-8 to form hybrid slurries. CO2 solubility in the different hybrid slurries at temperatures from 303.15 to 333.15 K was measured. The results indicated that CO2 solubility increases significantly with increasing pressure and decreases with increasing temperature. Moreover, CO2 solubility increases with the increase of ZIF-8 content, indicating that the addition of ZIF-8 into ILs can obviously enhance CO2 solubility. CO2 solubility in the ZIF-8/[C4Py][NTf2] slurry increases by 24% compared with the corresponding pure IL at 303.15 K and 1.80 MPa. The absorption-adsorption mechanism was studied using FT-IR and NMR spectroscopy. It was demonstrated that CO2 absorption and adsorption in the ZIF-8/ILs hybrid slurries is a physical process. Furthermore, the ZIF-8/[C4Py][NTf2] slurry can also keep the stable absorption performance after five consecutive absorption and desorption cycles. Considering the excellent capacity, thermal stability and recyclability, the porous materials/ILs slurry will provide new insight to CO2 capture compared with the conventional absorbents. (C) 2018 Elsevier Ltd.
资助项目	National Key R&D Program of China[2017YFB0603301] ; National Natural Science Foundation of China[21425625] ; National Natural Science Foundation of China[U1662122] ; National Natural Science Foundation of China[21506219] ; National Natural Science Foundation of China[51674234] ; Beijing hundreds of leading talents training project of science and technology[Z171100001117154]
WOS关键词	ZEOLITIC IMIDAZOLATE FRAMEWORKS ; METAL-ORGANIC FRAMEWORKS ; CARBON-DIOXIDE ; PHYSICAL-PROPERTIES ; SOLUBILITY ; ABSORPTION ; EFFICIENT ; MIXTURES ; SLURRY ; TETRAFLUOROBORATE
WOS研究方向	Thermodynamics ; Chemistry
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000446481000045
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Beijing hundreds of leading talents training project of science and technology
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/26302]
专题	中国科学院过程工程研究所
通讯作者	Zeng, Shaojuan; Zhang, Xiangping
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China 2.Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450001, Henan, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xue,Shang, Dawei,Zeng, Shaojuan,et al. Enhanced CO2 capture by binary systems of pyridinium-based ionic liquids and porous ZIF-8 particles[J]. JOURNAL OF CHEMICAL THERMODYNAMICS,2019,128:415-423.
APA	Wang, Xue.,Shang, Dawei.,Zeng, Shaojuan.,Wang, Yuanming.,Zhang, Xiaochun.,...&Liu, Jindun.(2019).Enhanced CO2 capture by binary systems of pyridinium-based ionic liquids and porous ZIF-8 particles.JOURNAL OF CHEMICAL THERMODYNAMICS,128,415-423.
MLA	Wang, Xue,et al."Enhanced CO2 capture by binary systems of pyridinium-based ionic liquids and porous ZIF-8 particles".JOURNAL OF CHEMICAL THERMODYNAMICS 128(2019):415-423.