Choline-Based Deep Eutectic Solvents for Mitigating Carbon Dioxide Emissions

Zhang, Yingying; Ji, Xiaoyan; Lü, Xiaohua

doi:10.1016/b978-0-444-63259-3.00003-3

Cited by 12 publications

(5 citation statements)

References 112 publications

(67 reference statements)

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“…Urea with relatively poor thermal stability would decompose first, followed by ChCl. However, the onset decomposition of ChCl was a little bit higher than pure ChCl which is 300°C (Zhang et al 2015) due to the formation of hydrogen bond within the -OH from silanol group and the Clfrom ChCl. Therefore, 5-15%ChCl:U/ SG200 sorbents were found to be stable up to 100°C and heated and regenerated at 100°C without decomposing ChCl:U.…”

Section: Resultsmentioning

confidence: 95%

“…Ionic liquid (IL) has also been studied as liquid absorbent with special properties such as low vapour pressure, good thermal stability, tunability and high CO 2 solubility (Ramdin et al 2012;Yusuf et al 2018). However, its cost, toxicity, and poor biodegradability limit the application of IL as CO 2 absorbent (Zhang et al 2015). Recently, increasing attention has been paid to new green solvent, deep eutectic solvents (DES) as a promising alternative to replace amine-based technologies.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, increasing attention has been paid to new green solvent, deep eutectic solvents (DES) as a promising alternative to replace amine-based technologies. DESs provide interesting advantages such as easy to prepare, biodegradable, low volatility, wide liquid range, water compatibility, low vapour pressure and biocompatible that are favourable in many possible green technologies including CO 2 capture (Zhang et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Immobilization of Choline Chloride: Urea onto Mesoporous Silica for Carbon Dioxide Capture

Ghazali

Hassan²,

Yarmo³

et al. 2019

JSM

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A green composite adsorbent based on mesoporous silica-gel (SG) and deep eutectic solvent (DES) mixture of choline chloride-urea (ChCl:U) was synthesized as an alternative for carbon dioxide (CO 2) adsorption. The composite adsorbent was prepared by wet impregnation technique with various ChCl:U (mole ratio 1:2) content in SG at 5-15% (w/w). Fourier transform infrared attenuated total reflectance (ATR-FTIR) results showed successful impregnation of ChCl:U into SG with the presence of C=O carbonyl amide group stretching, N-H scissoring bending, CH 2 bending and C-N stretching peaks. Thermal degradation of the adsorbent started with urea at 130°C followed by ChCl at 300°C. Meanwhile, nitrogen physisorption demonstrated a decrease in specific surface areas of the sorbents with increasing ChCl:U weight percentage due to the blockage of micropores by ChCl:U. The optimum CO 2 adsorption capacity of 22.3 mg/g was achieved by 10%ChCl:U/SG200, which was higher than the immobilised SG200, hence making it relevant to become a green and economical adsorbent for CO 2 capture.

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Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Immobilization of Choline Chloride: Urea onto Mesoporous Silica for Carbon Dioxide Capture

Ghazali

Hassan²,

Yarmo³

et al. 2019

JSM

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“…This, together with their low price, contributed decisively to the expansion of their usage. However, there are large gaps in the understanding of this type of choline-based ionic liquids, both in terms of their behavior in the aquatic environment and their cytotoxicity, since these are not yet extensively researched [21,22].…”

Section: Introductionmentioning

confidence: 99%

Biodegradation of Choline NTF2 by Pantoea agglomerans in Different Osmolarity. Characterization and Environmental Implications of the Produced Exopolysaccharide

Concepción,

Ricardo,

Enrique

2023

Polymers

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A specific microorganism, Pantoea agglomerans uam8, was isolated from the ionic liquid (IL) Choline NTF2 and identified by molecular biology. A biodegradation study was performed at osmolarity conditions (0.2, 0.6, 1.0 M). These had an important influence on the growth of the strain, exopolysaccharide (EPS) production, and biodegradation (1303 mg/L max production and 80% biodegradation at 0.6 M). These conditions also had an important influence on the morphology of the strain and its EPSs, but not in the chemical composition. The EPS (glucose, mannose and galactose (6:0.5:2)) produced at 0.6 M was further characterized using different techniques. The obtained EPSs presented important differences in the behavior of the emulsifying activity for vegetable oils (olive (86%), sunflower (56%) and coconut (90%)) and hydrocarbons (diesel (62%), hexane (60%)), and were compared with commercial emulsifiers. The EPS produced at 0.6 M had the highest emulsifying activity overall. This EPS did not show cytotoxicity against the tested cell line (<20%) and presented great advantages as an antioxidant (1,1-diphenyl-2-picryl-hydrazyl radical (DPPH) (85%), hydroxyl radical (OH) (99%), superoxide anion (O2−) (94%), chelator (54%), and antimicrobial product (15 mm). The osmolarity conditions directly affected the capacity of the strain to biodegrade IL and the subsequently produced EPS. Furthermore, the EPS produced at 0.6 M has potential for environmental applications, such as the removal of hazardous materials by emulsification, whilst resulting in positive health effects such as antioxidant activity and non-toxicity.

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“…12–14 These properties have prompted their use in catalysis, 15 biocatalysis, 16 organic synthesis 17 and extraction processes. 18 In addition, eutectic solvents have shown interesting advantages reducing carbon dioxide emissions, 19 improving the efficiency of biomass and drug dissolution, 20–22 as well as in their use for clinical therapy. 23 All of this makes DES promising green solvents for industrial use.…”

Section: Introductionmentioning

confidence: 99%

Ecotoxicological study of bio-based deep eutectic solvents formed by glycerol derivatives in two aquatic biomodels

et al. 2022

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Choline-Based Deep Eutectic Solvents for Mitigating Carbon Dioxide Emissions

Cited by 12 publications

References 112 publications

Immobilization of Choline Chloride: Urea onto Mesoporous Silica for Carbon Dioxide Capture

Immobilization of Choline Chloride: Urea onto Mesoporous Silica for Carbon Dioxide Capture

Biodegradation of Choline NTF2 by Pantoea agglomerans in Different Osmolarity. Characterization and Environmental Implications of the Produced Exopolysaccharide

Ecotoxicological study of bio-based deep eutectic solvents formed by glycerol derivatives in two aquatic biomodels

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