Novel manganese(II)-based deep eutectic solvents: Synthesis and physical properties analysis

Kow, Koon-Kee; Sirat, Kamaliah

doi:10.1016/j.cclet.2015.05.049

Cited by 45 publications

(20 citation statements)

References 34 publications

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“…44 The lower the DES viscosity value, the better DES is used as a solvent. 43 In this study, DES with organic acid HBD had a value between 100-300 cps, HBD based on sorbitol and urea had a value greater than 300 cps while DES based on ethylenglycol had the lowest viscosity with 30.36 cps. The high DES viscosity is caused by the presence of excess hydrogen bonds which cause van der Walls interactions and excess electrostatic interactions between the two components resulting in lower mobility of the molecules in DES.…”

Section: Des Synthesismentioning

confidence: 53%

“…42 DES viscosity is one of the most important analyzes because the application of DES is highly dependent on its viscosity value. 43 By knowing the viscosity value of DES, it will be easier to make DES with an optimum molar ratio suitable for certain applications and can also save energy in the DES manufacturing process. 39 In the application of DES solvents, the development of DES with low viscosity is desirable because DES has the potential to be environmentally friendly media.…”

Section: Des Synthesismentioning

confidence: 99%

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Comparison of the Deep Euteutic Solvent (DES) Solvent for Extracting Lignin from the Lignocellulosic Material of Pineapple Leaves

Sumiati¹,

Suryadi²,

Harmita³

et al. 2021

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Background: Lignocellulosic biomass is one of the materials that has the potential to produce cellulose. Lignocellulose material consists of lignin, hemicellulose and cellulose so that the three materials must be separated first to get pure cellulose. The main problem faced in the process of separating cellulose is the difficulty of separating lignin. One of the processes in separating lignin is by pretreatment of lignocellulosic material. Methods: In this study, Deep Euteutic Solvent (DES) choline (ChCl) as a hydrogen bond acceptor was synthesized and eight hydrogen bond donors (HBD) were mixed. Eight types of DESs, i.e. , choline chloride-acetic acid (ChCl-AA), ChCl: formic acid (ChCl-FA). ), choline chloride: Lactic acid (ChCl-LA), choline chloride:Citric acid (ChCl-SA), choline chloride: Glycerol (ChCl-G), choline chloride: Ethylenglycol (ChCl-EG), choline chloride: Sorbitol (ChCl-S), and choline chloride: Urea (ChCl -U) with a ratio of 1: 2 were investigated. Each. DES solvent was applied as a pretreatment for the lignocellulosic material of pineapple leaves. The results of the pretreatment formed were characterized by the Infra Red spectroscopic method to determine the typical functional groups. Result: The results showed that the pretreatment process using DES solvent resulted in a decrease in lignin levels in pineapple leaf powder, the highest in DES with linear saturated acid-based HBD, formic acid at 32.05%, glycerol at 30.18% and then in alpha hydroxy-based HBD, acetic acid at 29.90%. Meanwhile, the FT-IR results show that ChCl-FA has a high delignification ability during pretreatment. Pineapple leaves that have been pretreted with DES solvent can be a potential raw material for the next conversion process. This study presents DES as an effective and easy pretreatment method for lignin extraction.

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Section: Des Synthesismentioning

confidence: 53%

Section: Des Synthesismentioning

confidence: 99%

Comparison of the Deep Euteutic Solvent (DES) Solvent for Extracting Lignin from the Lignocellulosic Material of Pineapple Leaves

Sumiati¹,

Suryadi²,

Harmita³

et al. 2021

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“…Huang et al figured out the harmfulness test on Hydra sinensis ChCl and urea based DESs. The results showed that DESs could be less damaging as compared to each component [37,40].…”

Section: Review Articlementioning

confidence: 97%

Applicability of Deep Eutectic Solvents in Oil and Gas Processing Fields for CO₂ Control

2022

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Anthropogenic greenhouse gas emissions, particularly CO 2 emissions, have grown substantially, posing environmental challenges that affect mankind and ecosystems. As a possible consequence, carbon capture and storage is a viable solution to this worldwide problem. However, some aqueous solvents have been applied to capture greenhouse gases, though they are not environmentally benign. Deep eutectic solvents (DESs) emerged as a unique choice according to research into greener solvents for this activity. The applications of DESs and the gas solubility of various DESs with emphasis on CO 2 solubility in the oil and gas field are evaluated. This innovative solvent is also described in terms of its preparation and chemical composition. Detailed literature on investigation of CO 2 solubility in DESs based on experimental data is included.

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“…Thus, they find application across multidisciplinary fields since they can proffer improved functional properties on a material when incorporated into a reaction system. The preparation of metal nanocomposites from DES impacts toughness and introduce tunable functionality to the new material 45,46 …”

Section: Introductionmentioning

confidence: 99%

Transparent and photochromic poly(hydroxyethyl acrylate–acrylamide)/WO₃ hydrogel with antibacterial properties against bacterial keratitis in contact lens

Ejeromedoghene

Oderinde

et al. 2021

J of Applied Polymer Sci

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There have been numerous challenges in the incorporation of photochromic materials into hydrogel system due to the agglomeration of nanoparticles and non‐transparency of the hydrogel material. In this study, WO3 nanocomposites were prepared and incorporated into poly(hydroxyethyl acrylate) (pHEA) and polyacrylamide (pAAm) to fabricate poly(HEA‐AAm)/WO3 hydrogels with improved coloration efficiency and reversibility. The as‐prepared p(HEA‐AAm)/WO3 hydrogel displayed remarkable mechanical properties to sustain compressive and tensile stress up to 15.9 and 58.7 MPa with deformation ratios of 16.2 and 30.8, respectively. The hydrogels exhibited good transmittance (%T) and reflectance (%R) of ~47% and 64% at 829 and 408 nm respectively. The hydrogels also revealed visible spectroscopic absorbance at >781 nm after exposure to UV‐lamp and natural sunlight for 5 s and 0.5 h, giving rise to a blue coloration, however, the fading process of the hydrogels was achieved in 20 min and 2.0 h respectively in an open air. More so, the hydrogel solutions displayed a high antibacterial efficacy against bacteria pathogens associated with bacterial keratitis in contact lens care solutions. The observed excellent photochromic and antibacterial properties of the hydrogel show promising potentials for use in the construction of antibacterial contact lenses, optical and intelligent devices.

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Novel manganese(II)-based deep eutectic solvents: Synthesis and physical properties analysis

Cited by 45 publications

References 34 publications

Comparison of the Deep Euteutic Solvent (DES) Solvent for Extracting Lignin from the Lignocellulosic Material of Pineapple Leaves

Comparison of the Deep Euteutic Solvent (DES) Solvent for Extracting Lignin from the Lignocellulosic Material of Pineapple Leaves

Applicability of Deep Eutectic Solvents in Oil and Gas Processing Fields for CO₂ Control

Transparent and photochromic poly(hydroxyethyl acrylate–acrylamide)/WO₃ hydrogel with antibacterial properties against bacterial keratitis in contact lens

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Novel manganese(II)-based deep eutectic solvents: Synthesis and physical properties analysis

Cited by 45 publications

References 34 publications

Comparison of the Deep Euteutic Solvent (DES) Solvent for Extracting Lignin from the Lignocellulosic Material of Pineapple Leaves

Comparison of the Deep Euteutic Solvent (DES) Solvent for Extracting Lignin from the Lignocellulosic Material of Pineapple Leaves

Applicability of Deep Eutectic Solvents in Oil and Gas Processing Fields for CO2 Control

Transparent and photochromic poly(hydroxyethyl acrylate–acrylamide)/WO3 hydrogel with antibacterial properties against bacterial keratitis in contact lens

Contact Info

Product

Resources

About

Applicability of Deep Eutectic Solvents in Oil and Gas Processing Fields for CO₂ Control

Transparent and photochromic poly(hydroxyethyl acrylate–acrylamide)/WO₃ hydrogel with antibacterial properties against bacterial keratitis in contact lens