Hydrophobic deep eutectic solvent hydrogen bond interaction regulation and extraction performance of copper

被引：0
|
作者：
Ye Y. [1 ]
Ding X. [1 ]
Chi H. [1 ]
Zhu K. [1 ]
Liu Y. [2 ]
Wang L. [1 ]
Guo Q. [1 ,3 ]
机构：
[1] College of Chemical Engineering, Qingdao University of Science and Technology, Shandong, Qingdao
[2] College of Environmental, Qingdao University of Science and Technology, Shandong, Qingdao
[3] State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Ningxia, Yinchuan
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷
关键词：
environment; hydrogen bond interaction; hydrophobic deep eutectic solvents; physicochemical property; separation; solvent extraction;
D O I：
10.16085/j.issn.1000-6613.2022-0563
中图分类号：
学科分类号：
摘要：
A series of hydrophobic deep eutectic solvents (HDES) were synthesized with menthol as hydrogen bond acceptor and different kinds of carboxylic acids as hydrogen bond donor. The physicochemical properties of HDES system such as density and viscosity under different temperatures were investigated. The excess molar volume, viscosity deviation and interaction force parameters were calculated by using the excess molar property and the Glenberg-Nissan interaction force formula, and the interaction between components of HDES was analyzed. The hydrogen bonding between HDES components was determined by FTIR characterization. Solvent extraction of Cu2+ from aqueous phase was studied by the prepared HDES. The effects of pH, intercomponent interactions (carbon chain length of hydrogen bond donor, donor/acceptor molar ratio) on the extraction performance of copper were investigated. The results showed that the extraction efficiency of Cu2+ could be enhanced by the system with stronger hydrogen bond interaction among Men/Carboxylics-HDES, due to easier dissociation of hydrogen in carboxylic group. In addition, the extraction mechanism for copper was discussed through the relationship between the structure and properties of Men/Carboxylics-HDES system and the hydrogen bond interaction between components. The present work may provide a theoretical basis for revealing the structure-activity relationship of HDES and for further design of high-performance eutectic solvent. © 2022 Chemical Industry Press. All rights reserved.
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页码：397 / 406
页数：9
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