Relationship between hydrogen bond and viscosity for a series of pyridinium ionic liquids: Molecular dynamics and quantum chemistry

Ma, Yuan; Liu, Yue; Su, Huishuang; Wang, Li; Zhang, Jinglai

doi:10.1016/j.molliq.2018.01.121

Cited by 73 publications

(21 citation statements)

References 35 publications

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“…The viscosity of IL was effect by hydrogen bond. For example, strength of hydrogen bonds is determined items to improve viscosity of pyridinium ionic liquids [138]. Ionic clustering will influence the IL properties and behaviors including viscosity, dissolution, and acidity or alkalinity [139].…”

Section: Physicochemical Properties Of Ionic Liquidsmentioning

confidence: 99%

Ionic liquids combined with membrane separation processes: A review

Yan

Anguille

Bendahan

et al. 2019

Separation and Purification Technology

246

108

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Combination of membrane processes and ionic liquids have received more and more attention in pollutants removal because it enhances separation efficiency but also broaden their research and application areas. This review provides a first and systematical summary on ionic liquids incorporate in membrane processes for VOCs or CO2 separation, including supported ionic liquid membranes (SILMs), ILs composite polymer membranes (ILPMs), ionic liquids composite mixed matrix membranes (ILMMMs), poly(ionic liquid)s membranes (PILMs), ionic liquid gel membranes (ILGMs), and ionic liquid membrane contactors (ILMCs).Moreover, a new concept, combination of the membrane separation processes and absorption processes of ionic liquids, is introduced. Those separation processes are described detailly and compared with other conventional processes. With their separation performances and the processes of regeneration, membrane contactor shows stronger competitive advantages and it has the potential to be a major process in VOCs and CO2 separation. The advantages and disadvantages posed by all present ionic liquid membrane processes are summarized. Finally, challenges and opportunities in ionic liquid membrane separation processes are identified and discussed.

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Section: Physicochemical Properties Of Ionic Liquidsmentioning

confidence: 99%

Ionic liquids combined with membrane separation processes: A review

Yan

Anguille

Bendahan

et al. 2019

Separation and Purification Technology

246

108

View full text Add to dashboard Cite

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“…In these cases, the impact of background viscosity changes attributed to the small change of water content (0-15%) was negligible. It is believed that the hydrogen bond between water and amine played a key role in the viscosity changes 19 of the DMEDA-based water-lean system. The increased water fraction enhanced hydrogen bond formation with the amine, resulting in an increase in viscosity.…”

Section: Viscositymentioning

confidence: 99%

Diamine based water‐lean CO₂ solvent with extra high cyclic capacity and low viscosity

Yang

Xia

et al. 2021

Greenhouse Gases

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The industrial application of emerging water-lean solvents to CO 2 capture from flue gas is challenged by their high viscosity. In this work, we report a novel water-lean CO 2 solvent which possesses lower viscosity and higher CO 2 cyclic capacity than other water-lean solvents reported in the literature. The new solvent consists of N, N-dimethyl-1, 2-ethanediamine (DMEDA), physical cosolvent N-methyl-2-pyrrolidone (NMP) and up to 15% water (named ENH). We evaluated the effect of the solvent composition on the viscosity, CO 2 cyclic capacity and regeneration energy of ENH and compared it with the reference monoethanolamine (MEA) based solvents. It was found that ENH containing 5% H 2 O (ENH-5%H 2 O) with a CO 2 loading of 0.767 mol CO 2 •mol amine -1 had a viscosity of 7.603 mPa•S at 40 ˚C, which was comparable with that of traditional blended amines. Excellent cyclic capacity performance was also observed, with ENH-5% H 2 O showing a 140% improvement compared to aqueous MEA. Regeneration energy of ENH-5% H 2 O was estimated to be 2.418 GJ•tCO 2 -1 which is 36% lower than the 30 wt. % aqueous MEA solvent.

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“…However, the functional groups with polarity such as the amino group and carboxyl group of both SS and CMCS may form hydrogen bonds that can lead to crosslinking among SS and CMCS molecules. Moreover, it has been reported that the formation of hydrogen bonds between the components of the mixture can increase the viscosity [27]. As such, we hypothesize that intermolecular hydrogen bonds are formed among the SS and CMCS molecules, making the two components crosslink with each other.…”

Section: Samplesmentioning

confidence: 71%

Silk Sericin Enrichment through Electrodeposition and Carbonous Materials for the Removal of Methylene Blue from Aqueous Solution

Zhang

Chen

et al. 2022

IJMS

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The recycling and reuse of biomass waste for the preparation of carbon-based adsorbents is a sustainable development strategy that has a positive environmental impact. It is well known that a large amount of silk sericin (SS) is dissolved in the wastewater from the silk industry. Utilizing the SS instead of discharging it into the environment without further treatment would reduce environmental and ecological problems. However, effective enrichment of the SS from the aqueous solution is a challenge. Here, with the help of carboxymethyl chitosan (CMCS), which can form a gel structure under low voltage, an SS/CMCS hydrogel with SS as the major component was prepared via electrodeposition at a 3 V direct-current (DC) voltage for five minutes. Following a carbonization process, an SS-based adsorbent with good performance for the removal of methylene blue (MB) from an aqueous solution was prepared. Our results reveal that the SS/CMCS hydrogel maintains a porous architecture before and after carbonization. Such structure provides abundant adsorption sites facilitating the adsorption of MB molecules, with a maximum adsorptive capacity of 231.79 mg/g. In addition, it suggests that the adsorption is an exothermic process, has a good fit with the Langmuir model, and follows the intra-particle diffusion model. The presented work provides an economical and feasible path for the treatment of wastewater from dyeing and printing.

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Relationship between hydrogen bond and viscosity for a series of pyridinium ionic liquids: Molecular dynamics and quantum chemistry

Cited by 73 publications

References 35 publications

Ionic liquids combined with membrane separation processes: A review

Ionic liquids combined with membrane separation processes: A review

Diamine based water‐lean CO₂ solvent with extra high cyclic capacity and low viscosity

Silk Sericin Enrichment through Electrodeposition and Carbonous Materials for the Removal of Methylene Blue from Aqueous Solution

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Relationship between hydrogen bond and viscosity for a series of pyridinium ionic liquids: Molecular dynamics and quantum chemistry

Cited by 73 publications

References 35 publications

Ionic liquids combined with membrane separation processes: A review

Ionic liquids combined with membrane separation processes: A review

Diamine based water‐lean CO2 solvent with extra high cyclic capacity and low viscosity

Silk Sericin Enrichment through Electrodeposition and Carbonous Materials for the Removal of Methylene Blue from Aqueous Solution

Contact Info

Product

Resources

About

Diamine based water‐lean CO₂ solvent with extra high cyclic capacity and low viscosity