Article
Chemistry, Multidisciplinary
Bruno Sanchez, Paola R. Campodonico, Renato Contreras
Summary: An experimental and computational methodology for analyzing the Lewis acid/base responses of ILs and DES is proposed. It is based on the ability of Lewis acid and bases to donate and accept electronic charge, and shows good correlation with experimental data. This approach can serve as an approximation to predict the H-bonding abilities of new ILs or DES. However, difficulties in modeling the electronic acceptor numbers of these solvents limit its usefulness in describing their polarity properties.
FRONTIERS IN CHEMISTRY
(2022)
Article
Polymer Science
Debao Li, Letian Qi, Mengru Yang, Yujie Gu, Yu Xue, Jiachuan Chen, Ming He, Guihua Yang
Summary: In this study, switchable ionic liquids were synthesized and screened to improve the polarity and recyclability of deep eutectic solvents. By coupling with hydrogen-bond donors, a switchable-DES system with modified properties, such as viscosity, conductivity, and pH, was formed, leading to enhanced solubility of lignin compounds and improved molecular weight and uniformity. This proposed system has potential applications in the fractionation of lignin compounds and downstream industrial processes.
Article
Engineering, Chemical
Norafiqah Ismail, Jun Pan, Mahmoud Rahmati, Qian Wang, Denis Bouyer, Mohamed Khayet, Zhaoliang Cui, Naser Tavajohi
Summary: In this study, a new family of non-ionic deep eutectic solvents (NIDES) is proposed for membrane preparation, and high-performance PVDF membranes are efficiently prepared by dissolving PVDF polymer.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
S. Shweta, Debashis Kundu
Summary: The presence of persistent organic pollutants (POPs) in edible oils poses a risk to human health. Ionic liquids (ILs) and deep eutectic solvents (DESs) have been proven to be effective in extracting such pollutants. Using the COSMO-SAC framework, the study aims to screen and select the best ILs and DESs for extracting 27 types of POPs from various edible oils. The ultimate goal is to find safe and suitable green solvents for extracting POPs from edible oils.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Andrew J. Peloquin, Jena M. McCollum, Colin D. McMillen, William T. Pennington
Summary: This article discusses a new deep eutectic solvent based on halogen bonding, which is different from the majority of DESs that rely on ionic components. The newly developed deep eutectic solvent remains in liquid form, with a eutectic melting temperature at different 1,3-dithiane mole fractions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Ang Li, Siru Ren, Chuanjiang Teng, Hongmei Liu, Qi Zhang
Summary: Deep eutectic solvents (DESs) have potential applications as additives/modifiers in chiral electrokinetic chromatography (EKC) and can moderately improve the enantioseparation performance. The improvement is mainly attributed to the contribution of hydrogen-bond acceptors (HBAs) rather than hydrogen-bond donors (HBDs). However, using chiral DESs does not show obvious advantages compared to achiral DESs, which is different from the performance of chiral ionic liquids (ILs) as additives in chiral EKC.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Nicolas Schaeffer, Dinis O. Abranches, Liliana P. Silva, Monia A. R. Martins, Pedro J. Carvalho, Olga Russina, Alessandro Triolo, Laurent Paccou, Yannick Guinet, Alain Hedoux, Joao A. P. Coutinho
Summary: The study reveals that nonionic Type V deep eutectic solvents exhibit significant temperature-dependent nonideality due to changes in intermolecular hydrogen bonding with temperature.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Applied
Sile He, Kyung Ho Row, Weiyang Tang
Summary: Essential oils, as complex mixtures of volatile compounds, play a crucial role in improving product quality in various industries. This study proposes an in situ isolation technique using deep eutectic solvents (DESs) for the removal of impurities in essential oils. The deterpenation performance was predicted using COSMO-RS and DFT methods, and important characteristics of relevant compounds were obtained. Tetrabutylammonium chloride (TBAC) was chosen to extract hydroxy-terpenoids based on theoretical analysis and experimental results, and a re-extraction procedure yielded TBAC and terpenoids with a recovery rate of 81.8-84.4%.
Article
Engineering, Chemical
Ke Li, Kai Zong, Ziyue Zhou, Dongshun Deng
Summary: This study conducted new lithium deep eutectic solvents (DESs) by pairing simple lithium salt with various hydrogen bond donors, with LiCl/EG (1:3) DES showing exceptional performance in NH3 capture. The results provide useful insights for designing metallic DESs for NH3 separation applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Zhaoyang Wang, Tianhao Li, Wentao Bi, Wenling Zhang
Summary: In this study, magnetorheological fluids (MRFs) with a choline chloride/glycerol deep eutectic solvent (DES) as the carrier liquid were developed and studied. The DES showed strong hydrogen bonding interactions with the functional groups on the surfaces of the magnetic particles, leading to improved mechanical properties and sedimentation stability of the MRF. Factors such as the type and water content of DES, the HBA:HBD ratio, and the concentration of magnetic particles were found to significantly influence the magnetorheological properties. The research demonstrates the design and fabrication of a new type of eco-friendly, high-performance MRF for future development of efficient MRFs based on chemical or molecular interactions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Yunchang Fan, Chunyan Zhu, Sheli Zhang, Lei Zhang, Qiang Wang, Feng Wang
Summary: In this study, deep eutectic solvents (DESs) based on fragrances were synthesized and their extraction ability for sinomenine was evaluated. The results showed that the hydrogen-bonding interaction between sinomenine and DESs was the main driving force for extraction, and the hydrophobicity of the DESs did not significantly affect the extraction ability. DESs could be recycled and sinomenine could be quantitatively recovered via backextraction, resulting in high-purity sinomenine. These findings suggest that DESs are highly-effective solvents for the isolation of sinomenine and have great potential for extracting other bio-active compounds.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Mohamad Hamdi Zainal-Abidin, Maan Hayyan, Juan Matmin, Abdo Mohammed Al-Fakih, Naharullah Jamaluddin, Wan M. Asyraf Wan Mahmood, Roswanira Abdul Wahab, Faizuan Abdullah
Summary: The field of green technology is rapidly evolving, and deep eutectic solvents (DESs) are emerging as potential alternatives to traditional compounds. Within DESs, magnetic DESs (MagDESs) are gaining attention due to their unique magnetic properties. These properties, along with their stability and compatibility, make MagDESs suitable for various applications such as magnetic separation and purification.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Environmental
Yifan Wang, Yonghui Song, Yifan Li, Jin Li, Jin Bao, Xinwei Zhang, Bo Li
Summary: Efficient and sustainable recovery of precious metals from acidic leaching solution can be achieved using a hydrophobic deep eutectic solvent (HDES) synthesized from trioctylmethylammonium chloride (N263) and oleic acid (OA). The study investigated the effects of different experimental conditions on the extraction process and analyzed the reaction mechanisms using various characterization techniques. The results demonstrated that HDES has a high saturation extraction capacity and can effectively recover precious metals.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Runpeng Liu, Congde Qiao, Qinze Liu, Libin Liu, Jinshui Yao
Summary: In this study, gelatin hydrogels with excellent anti-freezing properties were prepared by immersing the initial hydrogels in a deep eutectic solvent (DES) aqueous solution. The introduction of DES hindered the formation of ice crystals in hydrogels even at low temperatures. The hydrogels remained mechanically flexible at -80 degrees C and showed good water retention performance.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Jie Zhu, Hui Shao, Lin Feng, Yingzhou Lu, Hong Meng, Chunxi Li
Summary: The absorption behavior and stability of three ChCl-based deep eutectic solvents in removing HCl gas were studied, with ChCl-Gly showing higher viability for adsorption of HCl-bearing gas.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Congfei Yao, Yucui Hou, Ying Sun, Weize Wu, Shuhang Ren, Hui Liu
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Yanxue Gu, Yucui Hou, Shuhang Ren, Ying Sun, Weize Wu
Article
Engineering, Chemical
Youan Ji, Yucui Hou, Shuhang Ren, Weize Wu
Summary: In this study, tetraethyl ammonium amino acid (TAAA) ionic liquids were designed to separate indole from wash oil mixtures, achieving a separation efficacy of up to 98.0% in less than 5 minutes. The TAAA method showed advantages such as the ability to regenera and reuse TAAA without significantly reducing the separation efficacy of indole. The presence of hydrogen bonds between TAAAs and indole was confirmed by FT-IR results, while water content was found to have a negative effect on indole separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Applied
Shisheng Liang, Yucui Hou, Weize Wu, He Li, Zhuosen He, Shuhang Ren
Summary: Direct coal liquefaction is crucial for the global energy industry, with solid coal particles and their residues serving as both reactants and catalyst carriers. The structural characteristics of these residues show changes in the aromatic structure and graphitization degree during the process. This study provides insights into the transformation of coal during liquefaction.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Engineering, Chemical
Bingru Wang, Long Lin, Shuhang Ren, Weize Wu
Summary: This study measured the specific heat capacities of six ILs and found that the specific heat capacities of ILs increase with temperature regardless of the presence of absorbed SO2. The specific heat capacity of ILs also increases with the amount of absorbed SO2. Additionally, the length of anionic alkyl side chains in ILs affects the specific heat capacity of SO2 absorption.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Review
Engineering, Chemical
Yan Wang, Shuhang Ren, Yucui Hou, Weize Wu
Summary: This review focuses on the investigation of various deep eutectic solvents (DESs) for capturing acidic gases in flue gases, summarizing non-functionalized and functionalized DESs for SO2, CO2, and NO capture. New strategies for enhancing absorption capacity, such as introducing a third component to form ternary DESs, are introduced, along with the use of halogen salt hydrogen bond acceptors (HBAs) and functionalized hydrogen bond donors (HBDs) for efficient absorption of SO2 and NO.
Article
Chemistry, Applied
Bo Yan, Guangpeng Zhang, Peng Gao, He Li, Shuhang Ren, Weize Wu
Summary: The study shows that an increase in temperature leads to an increase in physical solubility of hydrogen, a decrease in chemical solubility of hydrogen, and a decrease in total solubility as a result of the dominant contribution of chemical solubility. On the other hand, an increase in pressure results in an increase in chemical solubility, physical solubility, and total solubility of hydrogen.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Agriculture, Multidisciplinary
Yupeng Wang, Yucui Hou, Weize Wu, He Li, Shuhang Ren, Jianwei Li
Summary: The study characterized enzymatic lignin using advanced instruments and found the presence of multi-ring aromatic clusters, including double- and triple-aromatic ring clusters, as well as aromatic rings with long-alkyl chain substituents, which differs from traditional cognition of lignin.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Chemistry, Applied
He Li, Shisheng Liang, Yucui Hou, Yupeng Wang, Shuhang Ren, Weize Wu
Summary: The structural characteristics of Naomaohu coal, including high H/C ratio, high oxygen content, abundant aromatic ring structures, and alkyl bridge bonds, are beneficial for the mild liquefaction process. The study utilized alkali-oxygen oxidation, ruthenium ion catalyzed oxidation, and physical analyses to construct a representative structural model for Naomaohu coal.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Energy & Fuels
Yupeng Wang, Yucui Hou, He Li, Weize Wu, Shuhang Ren, Jianwei Li
Summary: Coal is believed to be derived from biomass, with lignin and lignite sharing a close structural relationship. Both lignin and lignite contain polycyclic aromatic clusters, but with differences in structural units.
Editorial Material
Engineering, Chemical
Shuhang Ren, Tiancheng Mu, Weize Wu
Article
Engineering, Chemical
Wanxiang Zhang, Wuji Zhao, Shuhang Ren, Yucui Hou, Weize Wu
Summary: This study explores the separation mechanism of benzene and cyclohexane using a dicationic ionic liquid (DIL) and highlights the significant improvements in selectivity and solvent capacity. Quantum chemistry calculations and molecular dynamics simulations are used to investigate the effects of different anions and cations on the microstructure and diffusion behavior of the mixture. The proposed liquid-liquid extraction and extractive distillation process solves the issues of low product purity and high energy consumption, leading to potential industrial applications.
GREEN CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Yucui Hou, Fan Yang, Chunmei Yang, Ziliang Feng, Lixia Feng, He Li, Shuhang Ren, Weize Wu
Summary: This study investigates the structure of Hebi anthracite based on its benzene carboxylic acids (BCAs) and proposes a structural model of the coal, providing new insights into the structural characteristics of anthracite.
JOURNAL OF THE ENERGY INSTITUTE
(2021)
Article
Energy & Fuels
Ting Lu, Guangyue Li, Weize Wu, Kejiang Li, Wenchao Li, Fan Yang, Yinghua Liang
