Tuning toxic properties of polyethylene glycol-based deep eutectic solvents for achieving greener solvents

Cao, Yuanyuan; Shan, Shuyi; Lu, Yitong; Luo, Jialu; Li, Yilin; Hao, Rongzhang

doi:10.1016/j.molliq.2022.120879

Cited by 10 publications

(7 citation statements)

References 59 publications

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“…The introduction of the third component might significantly influence the degree of DES toxicity. Cao et al found that the toxicity of PEG-based DESs to A549 cells was regulated by changing the composition and adding organic solvents . Changing the composition and molar ratio of HBDs and HBAs could modulate the toxicity of PEG-based DESs.…”

Section: Resultsmentioning

confidence: 99%

“…Changing the composition and molar ratio of HBDs and HBAs could modulate the toxicity of PEG-based DESs. The addition of NPA increased the toxicity of PEG-based DESs, while the addition of MeOH, H 2 O, EtOH, and DMF decreased the toxicity of PEG-based DESs . When B16F10 cells were selected, ChCl:fructose:water (5:2:5), ChCl:glucose:water (5:2:5), ChCl:sucrose:water (4:1:4), ChCl:glycerol:water (1:2:1), and ChCl:malonic acid (1:1) owned the IC50 values of 195, 211, 136, 340, and 35 mM, respectively .…”

Section: Resultsmentioning

confidence: 99%

“…Cao et al found that the toxicity of PEG-based DESs to A549 cells was regulated by changing the composition and adding organic solvents. 92 Changing the composition and molar ratio of HBDs and HBAs could modulate the toxicity of PEG-based DESs. The addition of NPA increased the toxicity of PEG-based DESs, while the addition of MeOH, H 2 O, EtOH, and DMF decreased the toxicity of PEG-based DESs.…”

Section: Effect Of the Mole Ratiomentioning

confidence: 99%

“…The addition of NPA increased the toxicity of PEG-based DESs, while the addition of MeOH, H 2 O, EtOH, and DMF decreased the toxicity of PEG-based DESs. 92 When B16F10 cells were selected, ChCl:fructose:water (5:2:5), ChCl:glucose:water (5:2:5), ChCl:sucrose:water (4:1:4), ChCl:glycerol:water (1:2:1), and ChCl:malonic acid (1:1) owned the IC50 values of 195, 211, 136, 340, and 35 mM, respectively. 57 The selection of cells types or microorganism types on the evaluation of toxicity is also important.…”

Section: Effect Of the Mole Ratiomentioning

confidence: 99%

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Unexpectedly Superhigh Toxicity of Superbase-Derived Deep Eutectic Solvents albeit High Efficiency for CO₂ Capture and Conversion

Cao

Sun

et al. 2023

Ind. Eng. Chem. Res.

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Superbase-derived deep eutectic solvents (DESs) are considered as biodegradable, low toxic, and sustainable solvents for efficient capture and conversion of carbon dioxide. However, do superbase-derived DESs have low toxicity just as reported? Herein, contradictory to the conventional thought, we find that the toxicity of superbase-derived DESs is super high. The toxicity of superbase-derived DESs in this work could be ca. 266 times that of DESs previously reported. Moreover, toxicity could be tuned by changing hydrogen bond donors, hydrogen bond acceptors, and mole ratios. The results indicate that the types of hydrogen bond donors had a paramount effect on the toxicity of DESs, and increasing the molar ratio of higher toxic components will also increase the toxicity of DESs. This work will provide possible ways to reduce the toxicity of DESs for achieving sustainable and green capture and conversion of carbon dioxide.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Effect Of the Mole Ratiomentioning

confidence: 99%

Section: Effect Of the Mole Ratiomentioning

confidence: 99%

See 2 more Smart Citations

Unexpectedly Superhigh Toxicity of Superbase-Derived Deep Eutectic Solvents albeit High Efficiency for CO₂ Capture and Conversion

Cao

Sun

et al. 2023

Ind. Eng. Chem. Res.

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“…By rational design and appropriate selection of constituents and concentration, DESs could be designed to be low-cost, biodegradable, and task-specific. − Although there are some disputes on the nature, greenness, and high viscosity of DESs, − DESs have attracted much attention as a result of the low melting point, easy synthesis, wide liquid range, and high tunability. , DESs are regarded as analogous ionic liquids (ILs); both DESs and ILs show a liquid state near room temperature, own lower volatility than volatile organic compounds (VOCs), and have high designability. − DESs are easier to be prepared, and the atom efficiency of DESs is higher than that of ILs; in this sense, DESs are deemed as IL alternatives . Some DESs are reported to be unstable , and toxic; − instead, it could be overcome by applying the high tunability of DESs. Therefore, DESs have been applied in many fields, ,− including acting as green solvents for lithium-ion battery (LIB) dissolution and recovery. − …”

Section: Introductionmentioning

confidence: 99%

Sustainable Tandem Strategy for Recycling the Lithium-Ion Battery Cathode and Treating Waste by Cheap and Biocompatible Deep Eutectic Solvents

et al. 2023

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Dissolution of the cathode by deep eutectic solvents (DESs) is the key and green step to recycle spent lithium-ion batteries (LIBs); moreover, pollutant removal by adsorbents is the efficient route for environment protection. However, the couple of dissolving the LIB cathode and pollutant removal with high sustainability and low cost has not been reported up to now. Here, we for the first time use cheap and green DESs to dissolve LIBs for the preparation of magnetic adsorbents for wastewater treatment and engine oil removal. Results show that the removal efficiency of wastewater could reach as much as 94.5%. More importantly, the magnetic adsorbents after removing pollutants could be easily regenerated by a magnet. In addition to organic dye removal, the magnetic adsorbent could adsorb 576.75% engine oil. This work would provide a novel sustainable and cheap strategy for achieving spent LIB recycle and pollutant removal subsequently with high efficiency.

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Designing Low Toxic Deep Eutectic Solvents for the Green Recycle of Lithium‐Ion Batteries Cathodes

Li,

Sun,

Cao

et al. 2024

ChemSusChem

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The Lithium‐ion battery (LIB) is one of the main energy storage equipment. Its cathode material contains Li, Co, and other valuable metals. Therefore, recycling spent LIBs can reduce environmental pollution and resource waste, which is significant for sustainable development. However, traditional metallurgical methods are not environmentally friendly, with high cost and environmental toxicity. Recently, the concept of green chemistry gives rise to environmental and efficient recycling technology, which promotes the transition of recycling solvents from organic solvents to green solvents represented by deep eutectic solvents (DESs). DESs are considered as ideal alternative solvents in extraction processes, attracting great attention due to their low cost, low toxicity, good biodegradability, and high extraction capacity. It is very important to develop the DESs system for LIBs recycling for sustainable development of energy and green economic development of recycling technology. In this work, the applications and research progress of DESs in LIBs recovery are reviewed, and the physicochemical properties such as viscosity, toxicity and regulatory properties are summarized and discussed. In particular, the toxicity data of DESs are collected and analyzed. Finally, the guidance and prospects for future research are put forward, aiming to explore more suitable DESs for recycling valuable metals in batteries.

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Tuning toxic properties of polyethylene glycol-based deep eutectic solvents for achieving greener solvents

Cited by 10 publications

References 59 publications

Unexpectedly Superhigh Toxicity of Superbase-Derived Deep Eutectic Solvents albeit High Efficiency for CO₂ Capture and Conversion

Unexpectedly Superhigh Toxicity of Superbase-Derived Deep Eutectic Solvents albeit High Efficiency for CO₂ Capture and Conversion

Sustainable Tandem Strategy for Recycling the Lithium-Ion Battery Cathode and Treating Waste by Cheap and Biocompatible Deep Eutectic Solvents

Designing Low Toxic Deep Eutectic Solvents for the Green Recycle of Lithium‐Ion Batteries Cathodes

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Tuning toxic properties of polyethylene glycol-based deep eutectic solvents for achieving greener solvents

Cited by 10 publications

References 59 publications

Unexpectedly Superhigh Toxicity of Superbase-Derived Deep Eutectic Solvents albeit High Efficiency for CO2 Capture and Conversion

Unexpectedly Superhigh Toxicity of Superbase-Derived Deep Eutectic Solvents albeit High Efficiency for CO2 Capture and Conversion

Sustainable Tandem Strategy for Recycling the Lithium-Ion Battery Cathode and Treating Waste by Cheap and Biocompatible Deep Eutectic Solvents

Designing Low Toxic Deep Eutectic Solvents for the Green Recycle of Lithium‐Ion Batteries Cathodes

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Unexpectedly Superhigh Toxicity of Superbase-Derived Deep Eutectic Solvents albeit High Efficiency for CO₂ Capture and Conversion

Unexpectedly Superhigh Toxicity of Superbase-Derived Deep Eutectic Solvents albeit High Efficiency for CO₂ Capture and Conversion