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Nie MN, Wang Z, Niu QH, Dai JX, Wang QQ, Peng JS, Ji P. Acidity Scale in a Choline Chloride- and Ethylene Glycol-Based Deep Eutectic Solvent and Its Implication on Carbon Dioxide Absorption. J Org Chem 2023; 88:5368-5376. [PMID: 37079700 DOI: 10.1021/acs.joc.2c02942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
An equilibrium acidity (pKa) scale that comprises 16 Brönsted organic acids, including phenols, carboxylic acids, azoles, and phenylmalononitriles, was established in a choline chloride/EG-based deep eutectic solvent (DES) ([Ch][Cl]:2EG) by ultraviolet-visible (UV-Vis) spectroscopic methods. The established acidity scale spans about 6 pK units in the DES, which is similar to that for these acids in water. The acidity comparisons and linear correlations between the DES and other solvents show that the solvent property of [Ch][Cl]:2EG is quite different from those of amphiphilic protic and dipolar aprotic molecular solvents. The carbon dioxide absorption capabilities as well as apparent absorption kinetics for a series of anion-functionalized DESs ([Ch][X]:2EG) were measured, and the results show that the basicity of comprising anion [X] of choline salt is essential for the maximum carbon dioxide absorption capacity, i.e., a stronger basicity leads to a greater absorption capacity. The possible absorption mechanisms for carbon dioxide absorption in these DESs were also discussed based on the spectroscopic evidence.
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Affiliation(s)
- Man-Ni Nie
- Aulin College, Northeast Forestry University, Harbin 150040, China
| | - Zhen Wang
- School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, China
| | - Qian-Hang Niu
- School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, China
| | - Jia-Xing Dai
- School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, China
| | - Qi-Qi Wang
- School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, China
| | - Jin-Song Peng
- Aulin College, Northeast Forestry University, Harbin 150040, China
| | - Pengju Ji
- Centre of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
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2
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Makoś-Chełstowska P. VOCs absorption from gas streams using deep eutectic solvents - A review. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130957. [PMID: 36860043 DOI: 10.1016/j.jhazmat.2023.130957] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/27/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
Volatile organic compounds (VOCs) are one of the most severe atmospheric pollutants. They are mainly emitted into the atmosphere from anthropogenic sources such as automobile exhaust, incomplete fuel combustion, and various industrial processes. VOCs not only cause hazards to human health or the environment but also adversely affect industrial installation components due to their specific properties, i.e., corrosive and reactivity. Therefore, much attention is being paid to developing new methods for capturing VOCs from gaseous streams, i.e., air, process streams, waste streams, or gaseous fuels. Among the available technologies, absorption based on deep eutectic solvents (DES) is widely studied as a green alternative to other commercial processes. This literature review presents a critical summary of the achievements in capturing individual VOCs using DES. The types of used DES and their physicochemical properties affecting absorption efficiency, available methods for evaluating the effectiveness of new technologies, and the possibility of regeneration of DES are described. In addition, critical comments on the new gas purification methods and future perspectives are included.
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Affiliation(s)
- Patrycja Makoś-Chełstowska
- Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland; EcoTech Center, Gdańsk University of Technology, 80-233 Gdańsk, Poland.
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3
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Abdelquader MM, Li S, Andrews GP, Jones DS. Therapeutic Deep Eutectic Solvents: A Comprehensive Review of Their Thermodynamics, Microstructure and Drug Delivery Applications. Eur J Pharm Biopharm 2023; 186:85-104. [PMID: 36907368 DOI: 10.1016/j.ejpb.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/13/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023]
Abstract
Deep eutectic solvents (DES) are multicomponent liquids that are usually formed by coupling a hydrogen bond donor and acceptor leading to strong non-covalent (NC) intermolecular networking and profound depression in the melting point of the system. Pharmaceutically, this phenomenon has been exploited to improve drugs' physicochemical properties, with an established DES therapeutic subcategory, therapeutic deep eutectic solvents (THEDES). THEDES preparation is usually via straightforward synthetic processes with little involvement of sophisticated techniques, which, in addition to its thermodynamic stability, make these multi-component molecular adducts a very attractive alternative for drug enabling purposes. Other NC bonded binary systems (e.g., co-crystals and ionic liquids) are utilized in the pharmaceutical field for enhancing drug's behaviours. However, a clear distinction between these systems and THEDES is scarcely discussed in the current literature. Accordingly, this review provides a structure-based categorization for DES formers, a discussion of its thermodynamic properties and phase behaviour, and it clarifies the physicochemical and microstructure boundaries between DES and other NC systems. Additionally, a summary of its preparation techniques and their experimental conditions preparation is supplied. Instrumental analysis techniques can be used to characterize and differentiate DES from other NC mixtures, hence this review draws a road map to for this purpose. Since this work mainly focuses on pharmaceutical applications of DES, all types of THEDES including the highly discussed types (conventional, drugs dissolved in DES and polymer based) in addition to the less discussed categories are covered. Finally, the regulatory status of THEDES was investigated despite the current unclear situation.
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Affiliation(s)
- Magdy M Abdelquader
- Pharmaceutical Engineering Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; Pharmaceutical Technology Department, Faculty of Pharmacy, Tanta University, Tanat, Egypt.
| | - Shu Li
- Pharmaceutical Engineering Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Gavin P Andrews
- Pharmaceutical Engineering Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - David S Jones
- Pharmaceutical Engineering Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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Xu P, Shang Z, Zhang W, Chen Z, Li G. Efficient capture of benzene and its homologues volatile organic compounds with π electron donor-based deep eutectic solvent: experimental and computational thermodynamics. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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5
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McReynolds C, Adrien A, Petitpas A, Rubatat L, Fernandes SCM. Double Valorization for a Discard-α-Chitin and Calcium Lactate Production from the Crab Polybius henslowii Using a Deep Eutectic Solvent Approach. Mar Drugs 2022; 20:717. [PMID: 36421995 PMCID: PMC9695577 DOI: 10.3390/md20110717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 04/25/2024] Open
Abstract
Polybius henslowii, an abundant yet unexploited species of swimming crab, was investigated as a potential source of α-chitin and calcium lactate using deep eutectic solvents (DES) as extracting solvents. Choline chloride-malonic acid (CCMA) and choline chloride-lactic acid (CCLA) were used to obtain high purity α-chitin from ball-milled P. henslowii exoskeleton in 2 h at 120 °C, with yields of 12.05 ± 2.54% and 12.8 ± 1.54%, respectively. The physical and chemical characteristics of the obtained chitins were assessed using CHN elemental analysis, attenuated total reflectance-Fourier transform infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy. Furthermore, the CCLA solvent was reusable three times with little effect on the extract purity, and calcium lactate was produced at the end of the recycling cycles. The ensuing calcium lactate was also characterized in terms of chemical and physical properties. The obtained chitin is a promising raw material for downstream processing and the double valorization pathway with the obtention of calcium salts may increase the viability of a DES-based approach for the processing of mineralized substrates.
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Affiliation(s)
- Colin McReynolds
- Universite de Pau et des Pays de l’Adour, E2S UPPA, IPREM, CNRS, 64 600 Anglet, France
- MANTA—Marine Materials Research Group, Universite de Pau et des Pays de l’Adour, E2S UPPA, 64 600 Anglet, France
| | - Amandine Adrien
- Universite de Pau et des Pays de l’Adour, E2S UPPA, IPREM, CNRS, 64 600 Anglet, France
- MANTA—Marine Materials Research Group, Universite de Pau et des Pays de l’Adour, E2S UPPA, 64 600 Anglet, France
| | - Arnaud Petitpas
- Universite de Pau et des Pays de l’Adour, E2S UPPA, IPREM, CNRS, 64 600 Anglet, France
- MANTA—Marine Materials Research Group, Universite de Pau et des Pays de l’Adour, E2S UPPA, 64 600 Anglet, France
| | - Laurent Rubatat
- Universite de Pau et des Pays de l’Adour, E2S UPPA, IPREM, CNRS, 64 600 Anglet, France
| | - Susana C. M. Fernandes
- Universite de Pau et des Pays de l’Adour, E2S UPPA, IPREM, CNRS, 64 600 Anglet, France
- MANTA—Marine Materials Research Group, Universite de Pau et des Pays de l’Adour, E2S UPPA, 64 600 Anglet, France
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Ratnani S, Bargujar S, Khulbe M, Kathuria A. Applications of Choline Chlorine based Deep Eutectic Solvents as Sustainable Media and catalyst in the synthesis of Heterocyclic Scaffolds. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220602105646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Deep eutectic solvents (DESs), also referred to as low transition temperature mixtures (LTTMs), have emerged as sustainable and cheap alternatives to conventional organic solvents in organic synthesis. This is attributed to their exceptional characteristics viz. easy preparation with readily available cheap materials, water compatibility, non-flammability, non-toxicity, biocompatibility, biodegradability, etc. All these properties label them as versatile and cost-effective green solvents. The first reported DES, choline chloride urea mixture has appeared as an innocuous solvent and catalyst in many organic transformations. This prospective DES combination has been applied extensively to the synthesis of a wide range of heterocyclic compounds including quinolones, spirooxindoles, etc. The conditions employed are relatively mild and do not require additional acid catalysts or organic solvents. This eco-friendly blend for the synthesis of heterocycles reports excellent yields of products with shorter reaction times and a simple workup procedure. Evaluating these merits, this review focuses on the recent literature published on the use of choline chlorine-based DESs in the synthesis of a few important heterocyclic compounds.
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Affiliation(s)
- Sonia Ratnani
- Department of Chemistry, Ramjas College, University of Delhi, Delhi - 110007, India
| | - Savita Bargujar
- Department of Chemistry, Ramjas College, University of Delhi, Delhi - 110007, India
| | - Mihir Khulbe
- Department of Chemistry, Ramjas College, University of Delhi, Delhi - 110007, India
| | - Abha Kathuria
- Department of Chemistry, Ramjas College, University of Delhi, Delhi - 110007, India
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7
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Li Z, Liu W, Yang G. Solvent-free synthesis of oleic acid-based wax esters using recyclable acidic deep eutectic solvent. GRASAS Y ACEITES 2022. [DOI: 10.3989/gya.1007202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Wax esters have been widely used in cosmetics and pharmaceutical products. Oleic acid wax esters can be used to replace spermaceti oil or jojoba oil. In this work, the acidic deep eutectic solvent (DES) composed of choline chloride and p-toluenesulfonic acid (1:4, mol/mol) was used as an efficient recyclable catalyst for the synthesis of oleic acid-based liquid wax esters through an esterification reaction. The esterification conversion of cetyl alcohol reached 99.1% under the following optimal reaction conditions: 5% DES as catalyst, molar ratio of fatty acid to alcohol of 1.3:1 and reaction temperature of 70 oC for 3h. The catalyst recovery experiments showed that this low-price acidic DES catalyst could be reused five times with uniform activity. Moreover, DES-catalyzed solvent-free esterification could be applied in the preparation of other oleic acid-based wax esters and excellent conversions (> 96%) could be obtained under such mild conditions.
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8
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Chen CC, Huang YH, Fang JY. Hydrophobic deep eutectic solvents as green absorbents for hydrophilic VOC elimination. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127366. [PMID: 34653856 DOI: 10.1016/j.jhazmat.2021.127366] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/15/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
As a common hydrophilic volatile organic compound (VOC), acetone is known to harm human health and the atmospheric environment. Absorption is a typical technique applied to capture hydrophilic VOCs; however, the difficulty of separating and recovering absorbed hydrophilic VOCs (e.g., acetone) from aqueous absorbents has become one of the major challenges in practical applications. Hydrophobic deep eutectic solvents (DESs) have therefore been developed as novel green absorbents for capturing hydrophilic VOCs in the present work. The compiled results show that efficient hydrophilic VOC elimination can be accomplished by the proposed hydrophobic DESs through high absorption capacity and thermodynamically favorable gas-to-liquid mass transfer. Among the explored DESs, the hydrophobic DES containing thymol [Thy] and decanoic acid [DecA] with a molar ratio of 1:1 has achieved the highest absorption capacity of acetone, i.e., 6.57 mg acetone per g DES at 20 °C and 1480 ppm acetone. The oxygen of acetone interacts favorably with the hydrogen atom of [Thy] upon absorption, rendering hydrogen bonding interaction surpassing polarity as the key factor in attaining superior solubility of acetone in DESs. Moreover, the absorbed acetone can be easily removed from Thy-based DESs, realizing an effective hydrophilic VOC elimination process with economic and ecological benefits.
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Affiliation(s)
- Chun-Chi Chen
- Department of Environmental Engineering and Science, Feng Chia University, Taichung City 407, Taiwan, ROC.
| | - Yen-Hui Huang
- Department of Environmental Engineering and Science, Feng Chia University, Taichung City 407, Taiwan, ROC
| | - Jia-Yu Fang
- Department of Environmental Engineering and Science, Feng Chia University, Taichung City 407, Taiwan, ROC
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10
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A Comprehensive Study of CO 2 Absorption and Desorption by Choline-Chloride/Levulinic-Acid-Based Deep Eutectic Solvents. Molecules 2021; 26:molecules26185595. [PMID: 34577069 PMCID: PMC8465201 DOI: 10.3390/molecules26185595] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/11/2021] [Accepted: 09/13/2021] [Indexed: 11/16/2022] Open
Abstract
Amine absorption (or amine scrubbing) is currently the most established method for CO2 capture; however, it has environmental shortcomings and is energy-intensive. Deep eutectic solvents (DESs) are an interesting alternative to conventional amines. Due to their biodegradability, lower toxicity and lower prices, DESs are considered to be "more benign" absorbents for CO2 capture than ionic liquids. In this work, the CO2 absorption capacity of choline-chloride/levulinic-acid-based (ChCl:LvAc) DESs was measured at different temperatures, pressures and stirring speeds using a vapour-liquid equilibrium rig. DES regeneration was performed using a heat treatment method. The DES compositions studied had ChCl:LvAc molar ratios of 1:2 and 1:3 and water contents of 0, 2.5 and 5 mol%. The experimental results showed that the CO2 absorption capacity of the ChCl:LvAc DESs is strongly affected by the operating pressure and stirring speed, moderately affected by the temperature and minimally affected by the hydrogen bond acceptor (HBA):hydrogen bond donator (HBD) molar ratio as well as water content. Thermodynamic properties for CO2 absorption were calculated from the experimental data. The regeneration of the DESs was performed at different temperatures, with the optimal regeneration temperature estimated to be 80 °C. The DESs exhibited good recyclability and moderate CO2/N2 selectivity.
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11
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Calvo‐Flores FG, Mingorance‐Sánchez C. Deep Eutectic Solvents and Multicomponent Reactions: Two Convergent Items to Green Chemistry Strategies. ChemistryOpen 2021; 10:815-829. [PMID: 34402596 PMCID: PMC8369850 DOI: 10.1002/open.202100137] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/30/2021] [Indexed: 12/20/2022] Open
Abstract
One of the highlights of green chemistry is the development of techniques and procedures with low environmental impact. In the last years, deep eutectic solvents (DES) have become an important alternative to conventional organic solvents. For a period ionic liquids have provoked remarkable interest, but they have been displaced by DES because they show easier preparation methods, lower prices, many of them are biodegradable and compatible with biological systems. In addition, they show adjustable physicochemical properties, high thermal stability, low volatility and are compatible with water. In this paper is reviewed the state of the art of the use of DES paying special attention to the role of reaction media in organic synthesis.
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Affiliation(s)
- Francisco G. Calvo‐Flores
- Grupo de Modelización MolecularDpto. de Química OrgánicaFacultad de CienciasUniversidad de Granada18071GranadaSpain
| | - Cristina Mingorance‐Sánchez
- Grupo de Modelización MolecularDpto. de Química OrgánicaFacultad de CienciasUniversidad de Granada18071GranadaSpain
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12
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13
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Solvent dependency of carbon dioxide Henry's constant in aqueous solutions of choline chloride-ethylene glycol based deep eutectic solvent. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114173] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Mohd Faridz Hilmy NI, Yahya WZN, Kurnia KA. Eutectic ionic liquids as potential electrolytes in dye-sensitized solar cells: Physicochemical and conductivity studies. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114381] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Effect of Hydrogen Bond Donors and Acceptors on CO2 Absorption by Deep Eutectic Solvents. Processes (Basel) 2020. [DOI: 10.3390/pr8121533] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The effects of a hydrogen bond acceptor and hydrogen bond donor on carbon dioxide absorption via natural deep eutectic solvents were studied in this work. Naturally occurring non-toxic deep eutectic solvent constituents were considered; choline chloride, b-alanine, and betaine were selected as hydrogen bond acceptors; lactic acid, malic acid, and fructose were selected as hydrogen bond donors. Experimental gas absorption data were collected via experimental methods that uses gravimetric principles. Carbon dioxide capture data for an isolated hydrogen bond donor and hydrogen bond acceptor, as well as natural deep eutectic solvents, were collected. In addition to experimental data, a theoretical study using Density Functional Theory was carried out to analyze the properties of these fluids from the nanoscopic viewpoint and their relationship with the macroscopic behavior of the system, and its ability for carbon dioxide absorption. The combined experimental and theoretical reported approach work leads to valuable discussions on what is the effect of each hydrogen bond donor or acceptor, as well as how they influence the strength and stability of the carbon dioxide absorption in deep eutectic solvents. Theoretical calculations explained the experimental findings, and combined results showed the superiority of the hydrogen bond acceptor role in the gas absorption process, with deep eutectic solvents. Specifically, the cases in which choline chloride was used as hydrogen bond acceptor showed the highest absorption performance. Furthermore, it was observed that when malic acid was used as a hydrogen bond donor, it led to low carbon dioxide solubility performance in comparison to other studied deep eutectic solvents. The cases in which lactic acid was used as a hydrogen bond donor showed great absorption performance. In light of this work, more targeted, specific, deep eutectic solvents can be designed for effective and alternative carbon dioxide capture and management.
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Siani G, Tiecco M, Di Profio P, Guernelli S, Fontana A, Ciulla M, Canale V. Physical absorption of CO2 in betaine/carboxylic acid-based Natural Deep Eutectic Solvents. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113708] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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17
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Alioui O, Benguerba Y, Alnashef IM. Investigation of the CO2-solubility in deep eutectic solvents using COSMO-RS and molecular dynamics methods. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113005] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Rozas S, Atilhan M, Aparicio S. Insights on (C, BN, Si, Ge, MoS 2) Nanotubes in Reline Deep Eutectic Solvent. J Phys Chem B 2020; 124:3556-3567. [PMID: 32264679 DOI: 10.1021/acs.jpcb.0c01253] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The properties of carbon, boron nitride, silicon, germanium, and molybdenum disulfide nanotubes in reline (cholinium chloride + urea) deep eutectic solvents were studied by using classical molecular dynamics simulations. These nanotubes + reline nanofluids provide a suitable platform for the development of sustainable thermal engineering applications. The reported results lead to the characterization of nanotube solvation and reline layering around the nanotube surfaces as well as the behavior of reline upon confinement inside the considered nanotube cavities. Changes in reline hydrogen bonding in the presence of the nanotubes are also analyzed and related with the development of stable nanotube dispersions, thus showing reline as a suitable vehicle for nanotubes.
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Affiliation(s)
- Sara Rozas
- Department of Chemistry, University of Burgos, 09001 Burgos, Spain
| | - Mert Atilhan
- Department of Chemical and Paper Engineering, Western Michigan University, Kalamazoo, Michigan 49008, United States
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19
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Ünlü AE, Arikaya A, Altundağ A, Takaç S. Remarkable effects of deep eutectic solvents on the esterification of lactic acid with ethanol over Amberlyst-15. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-019-0385-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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20
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Shaibuna M, Hiba K, Theresa LV, Sreekumar K. A new type IV DES: a competent green catalyst and solvent for the synthesis of α,β-unsaturated diketones and dicyano compounds by Knoevenagel condensation reaction. NEW J CHEM 2020. [DOI: 10.1039/d0nj02852e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Preparation, characterisation and application of novel type IV DESs from CeCl3·7H2O and HBDs (urea, ethylene glycol, glycerol and lactic acid).
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Affiliation(s)
- M. Shaibuna
- Department of Applied Chemistry
- Cochin University of Science and Technology
- Cochin
- India
| | - K. Hiba
- Department of Applied Chemistry
- Cochin University of Science and Technology
- Cochin
- India
| | - Letcy V. Theresa
- Department of Applied Chemistry
- Cochin University of Science and Technology
- Cochin
- India
| | - K. Sreekumar
- Department of Applied Chemistry
- Cochin University of Science and Technology
- Cochin
- India
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21
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Jablonský M, Škulcová A, Šima J. Use of Deep Eutectic Solvents in Polymer Chemistry-A Review. Molecules 2019; 24:E3978. [PMID: 31684174 PMCID: PMC6864848 DOI: 10.3390/molecules24213978] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/30/2019] [Accepted: 11/01/2019] [Indexed: 12/18/2022] Open
Abstract
This review deals with two overlapping issues, namely polymer chemistry and deep eutectic solvents (DESs). With regard to polymers, specific aspects of synthetic polymers, polymerization processes producing such polymers, and natural cellulose-based nanopolymers are evaluated. As for DESs, their compliance with green chemistry requirements, their basic properties and involvement in polymer chemistry are discussed. In addition to reviewing the state-of-the-art for selected kinds of polymers, the paper reveals further possibilities in the employment of DESs in polymer chemistry. As an example, the significance of DES polarity and polymer polarity to control polymerization processes, modify polymer properties, and synthesize polymers with a specific structure and behavior, is emphasized.
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Affiliation(s)
- Michal Jablonský
- Institute of Natural and Synthetic Polymers, Department of Wood, Pulp and Paper, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinskeho 9, Bratislava SK-812 37, Slovakia.
| | - Andrea Škulcová
- Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Science, Kamýcka 129, 165 00 Prague 6-Suchdol, Czech Republic.
- Institute of Chemical and Environmental Engineering, Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinskeho 9, Bratislava SK-812 37, Slovakia.
| | - Jozef Šima
- Department of Inorganic Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinskeho 9, Bratislava SK-812 37, Slovakia.
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Amhamed A, Atilhan M, Berdiyorov G. Permeabilities of CO 2, H 2S and CH 4 through Choline-Based Ionic Liquids: Atomistic-Scale Simulations. Molecules 2019; 24:molecules24102014. [PMID: 31137761 PMCID: PMC6572545 DOI: 10.3390/molecules24102014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/30/2019] [Accepted: 05/14/2019] [Indexed: 11/16/2022] Open
Abstract
Molecular dynamics simulations are used to study the transport of CO2, H2S and CH4 molecules across environmentally friendly choline-benzoate and choline-lactate ionic liquids (ILs). The permeability coefficients of the considered molecules are calculated using the free energy and diffusion rate profiles. Both systems show the largest resistance to CH4, whereas more than 5 orders of magnitude larger permeability coefficients are obtained for the other two gas molecules. The CO2/CH4 and H2S/CH4 selectivity was estimated to be more than 104 and 105, respectively. These results indicate the great potential of the considered ILs for greenhouse gas control.
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Affiliation(s)
- Abdukarem Amhamed
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Doha 34110, Qatar.
| | - Mert Atilhan
- Department of Chemical Engineering, Texas A&M University at Qatar, Doha 23874, Qatar.
- Gas and Fuels Research Center, Texas A&M University, College Station, TX 77843, USA.
| | - Golibjon Berdiyorov
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Doha 34110, Qatar.
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