Ionic liquids, deep eutectic solvents and liquid polymers as green solvents in carbon capture technologies: a review

Krishnan, Abhishek; Gopinath, Kannappan Panchamoorthy; Vo, Dai‐Viet N.; Malolan, Rajagopal; Nagarajan, Vikas Madhav; Arun, Jayaseelan

doi:10.1007/s10311-020-01057-y

Cited by 133 publications

(72 citation statements)

References 182 publications

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“…Many studies have shown that some ILs can exhibit environmental toxicity or organismal cytotoxicity [ 207 , 208 , 209 ]. Alternatively, there are numerous examples in the literature of ILs that exhibit low levels of cytotoxicity, encouraging the investigation of these formulations for biological and pharmaceutical applications [ 207 , 208 , 210 , 211 , 212 , 213 ]. Our own work has shown that the cytotoxicity of ILs with imidazolium-based cations is dependent on alkyl chain length but can be used synergistically with traditional antimicrobials well below the cytotoxicity window against human cells [ 214 , 215 ].…”

Section: Conclusion/perspectivementioning

confidence: 99%

Effects of Ionic Liquids on Metalloproteins

et al. 2021

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In the past decade, innovative protein therapies and bio-similar industries have grown rapidly. Additionally, ionic liquids (ILs) have been an area of great interest and rapid development in industrial processes over a similar timeline. Therefore, there is a pressing need to understand the structure and function of proteins in novel environments with ILs. Understanding the short-term and long-term stability of protein molecules in IL formulations will be key to using ILs for protein technologies. Similarly, ILs have been investigated as part of therapeutic delivery systems and implicated in numerous studies in which ILs impact the activity and/or stability of protein molecules. Notably, many of the proteins used in industrial applications are involved in redox chemistry, and thus often contain metal ions or metal-associated cofactors. In this review article, we focus on the current understanding of protein structure-function relationship in the presence of ILs, specifically focusing on the effect of ILs on metal containing proteins.

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Section: Conclusion/perspectivementioning

confidence: 99%

Effects of Ionic Liquids on Metalloproteins

et al. 2021

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“…In comparison with ILs, deep eutectic solvents (DESs) have lower costs and an easier synthesis process, being produced with high purity, are less harmful for the environment and present less toxicity (Benvenutti et al 2019;Kostić and Divac 2019). DESs are characterized by a lower melting point than the initial constituents (Florindo et al 2017;Krishnan et al 2020). There are two types of deep eutectic solvents: ionic and non-ionic (Huang et al 2019) and the synthesis of various DESs has already been reviewed (Khandelwal et al 2016).…”

Section: Non-conventional Solventsmentioning

confidence: 99%

Biorefinery of marine macroalgae into high-tech bioproducts: a review

et al. 2020

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Pollution and climate change induced by fossil fuel usage are calling for the development of a circular bioeconomy based on carbon neutral resources such as marine macroalgae, also named seaweeds. Macroalgal biomass can generate biofuels and valuable bioproducts such as hydrocolloids and other unique biomolecules. Biorefinery of marine macroalgae involves a minimum use of energy and chemicals, and low waste generation, as demonstrated in recent laboratory-scale studies. Here, we review biorefinery of marine macroalgae with focus on non-energy bioproducts and advances in the separation of biomolecules. We found that metabolites with bioactive properties are in high demand for food, cosmetic, medicine and pharmaceutical industries. These metabolites can be obtained together with energy products to improve macroalgae valorization. Emerging extraction methods facilitate the generation of more qualitative bioproducts in higher yields with less energy.

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“…Industrial use of ionic liquids is very poor, mainly because of the high price, which excludes them from bulk applications. Moreover, there are data exhibiting their toxicity and non-biodegradability [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Solubility of Carbon Dioxide in Deep Eutectic Solvents Based on 3-Amino-1-Propanol and Tetraalkylammonium Salts at Low Pressure

2021

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Deep eutectic solvents (DESs) became an object of a great interest as an alternative to ionic liquids (ILs) and commonly used in CO2 capture amine solutions. In the present study, five different DESs based on 3-amino-1-propanol as physical-chemical CO2 absorbents were used. The composition was chosen in order to estimate the effects of hydrogen bond acceptor:hydrogen bond donor (HBA:HBD) molar ratio, anion type and length of alkyl chain of composing salt. The Fourier Transform Infrared (FTIR) spectroscopy was used to confirm chemical reaction. The solubility of CO2 was measured at low pressures up to 170 kPa at the temperature range of 293–318 K. Viscosity, polarity and Kamlet–Taft parameters were determined in order to estimate the dependences of the parameters and the CO2 capacity. CO2 uptake was observed to improve with decreasing molar ratio of hydrogen bond donor. Comparing the CO2 capacity of [TBAC]-based DESs, at the approximate pressure of 50 kPa, it was observed that the capacity increased in the following order of molar ratios—1:8 < 1:6 < 1:4 and a decrease in molar ratio from 1:8 to 1:4 resulted in about a 100% increase of capacity. Compared to [TBAC][AP] DESs, the [TEAC][AP] 1:4 and [TBAB][AP] 1:4 exhibited higher CO2 uptake, though the best results were obtained for [TBAB][AP].

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Ionic liquids, deep eutectic solvents and liquid polymers as green solvents in carbon capture technologies: a review

Cited by 133 publications

References 182 publications

Effects of Ionic Liquids on Metalloproteins

Effects of Ionic Liquids on Metalloproteins

Biorefinery of marine macroalgae into high-tech bioproducts: a review

Solubility of Carbon Dioxide in Deep Eutectic Solvents Based on 3-Amino-1-Propanol and Tetraalkylammonium Salts at Low Pressure

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