Deep eutectic solvents consisting of 1-ethyl-3-methylimidazolium chloride and glycerol derivatives for highly efficient and reversible SO2 capture

被引：48
作者：
Long, Guangcai [1 ,2 ]
Yang, Chunliang [1 ,2 ]
Yang, Xiaoqing [1 ,2 ]
Zhao, Tianxiang [1 ,2 ]
Xu, Meisong [1 ,2 ]
机构：
[1] Guizhou Univ, Sch Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China
[2] Key Lab Green Chem & Clean Energy Technol, Guiyang 550025, Guizhou, Peoples R China
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2020年 / 302卷 / 302期
关键词：
SO2; capture; Deep eutectic solvents; Glycerol; EmimCl; IONIC LIQUIDS; CHOLINE-CHLORIDE; LEVULINIC ACID; ABSORPTION; GAS;
D O I：
10.1016/j.molliq.2020.112538
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Development of eco-friendly materials for the removal of SO2 is a significant topic in sustainable chemical engineering process. In this work, we describe an efficient protocol for highly efficient and reversible SO2 capture by deep eutectic solvents (DESs) consisting of 1-ethyl-3-methylimidazolium chloride (EmimCl) and glycerol derivatives. The presented DESs exhibit an equal or much higher absorption capacity than previously reported DESs or ionic liquids in the same conditions. Particularly, EmimCl-glycerol (molar ratio 2:1) shows excellent reversible absorption through physical interactions supporting by FTIR and NMR spectroscopic experiments, thus presenting good potential as a candidate absorbent for the removal of SO2. (C) 2020 Published by Elsevier B.V.
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页数：6
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