Effects of soil components and solution inorganic cations on interactions of imidazolium-based ionic liquid with soils

Miao, Qiuci; Bi, Erping

doi:10.1016/j.jenvman.2018.06.041

Cited by 8 publications

(4 citation statements)

References 52 publications

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“…Therefore, some ionic liquids may be quite mobile in water or soil columns whereas others may bind strongly to various environmental compartments and may become persistent pollutants. Additionally, the properties of soil such as high cation exchange capacity and/or abundance of organic matter will greatly increase the uptake of ILs [267][268][269][270][271][272][273][274][275] . Although their use is usually restricted to small quantities, ILs could still have considerable negative effects on wildlife and human health.…”

Section: Energy and Environmental Science Accepted Manuscriptmentioning

confidence: 99%

Environmental impacts, pollution sources and pathways of spent lithium-ion batteries

Mrozik

Rajaeifar

Heidrich

et al. 2021

Energy Environ. Sci.

403

153

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Section: Energy and Environmental Science Accepted Manuscriptmentioning

confidence: 99%

Environmental impacts, pollution sources and pathways of spent lithium-ion batteries

Mrozik

Rajaeifar

Heidrich

et al. 2021

Energy Environ. Sci.

403

153

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“…According to calculations of the interaction force between ore particles, solution concentration was the main influencing factor. erefore, changes in the critical (NH 4 ) 2 SO 4 solution concentration arising from different grading levels was related to changes in CEC, thus influencing changes to the concentration of solution surrounding ore particles [28,29]. erefore, the relationship between CEC and critical concentration of (NH 4 ) 2 SO 4 solution was further analyzed (Figure 11).…”

Section: Effects Of Cec On Critical (Nh 4 ) 2 So 4 Solutionmentioning

confidence: 99%

Effects of Concentration of Pore Solution on Stability of Ion‐Absorbed Rare Earth Ore Aggregate

Wang

Hong

2021

Advances in Civil Engineering

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The continuous change in solution concentration in ore pores during in situ mineral leaching influences the stability of ore aggregate. In this study, influences of the concentration of ammonium sulfate ((NH4)2SO4) solution on the interaction forces between ore particles were calculated. On this basis, the mechanism by which (NH4)2SO4 solution concentration influences the stability of ore aggregate was analyzed. Furthermore, an empirical formula for estimating the critical (NH4)2SO4 solution concentration for aggregation and dispersion of ore body aggregates with different grain composition was proposed. Some major conclusions were drawn. First, for ore bodies with an initial particle size of less than 0.075 mm, the interaction force between particles was net attraction, with the distance range of this force increasing as the concentration of (NH4)2SO4 solution increased from ≤0.001 to 0.16 mol·L−1, aggregation of ore particles occurring within this distance range. Secondly, for ore bodies with initial particle size of less than 0.075 mm, the interaction force between particles was net attraction, but with the distance range of this force decreasing when the (NH4)2SO4 solution concentration increased from 0.16 to 0.28 mol·L−1, dispersion of ore particles occurring beyond this distance range. Thirdly, for ore bodies with particle sizes of less than 0.038, 0.075 and 0.1 mm, the cation exchange capacity (CEC) was 9.13, 8.96, and 8.8 cmol·kg−1, respectively, and the critical (NH4)2SO4 solution concentration affecting the aggregation and dispersion of ore bodies was 0.12, 0.16, and 0.20 mol·L−1, respectively.

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“… 23 Common ILs generally consist of fluoride anions and alkylimidazolium cations. 24 ILs have many advantages over traditional organic and inorganic solvents; these include good thermal stability, conductivity, and solubility, low steam pressure, regulation, wide electrochemical windows, and low toxicity. 25 − 28 Furthermore, ILs can be recycled, are cheap, and meet the requirements of green chemistry.…”

Section: Introductionmentioning

confidence: 99%

“…ILs are molten salts that consist of cations and anions, and are liquid at or near room temperature . Common ILs generally consist of fluoride anions and alkylimidazolium cations . ILs have many advantages over traditional organic and inorganic solvents; these include good thermal stability, conductivity, and solubility, low steam pressure, regulation, wide electrochemical windows, and low toxicity. − Furthermore, ILs can be recycled, are cheap, and meet the requirements of green chemistry. , They are widely used in areas such as electrochemistry, organic chemical reactions, separation and purification, and synthesis of inorganic nanomaterials …”

Section: Introductionmentioning

confidence: 99%

Adsorption Separation of Cr(VI) from a Water Phase Using Multiwalled Carbon Nanotube-Immobilized Ionic Liquids

Sun

Wang

et al. 2020

ACS Omega

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Three types of multiwalled carbon nanotubes (MWCNTs, MWCNTs-OH, and MWCNTs-COOH) were used as carriers and five types of ionic liquids (ILs) were immobilized on each carrier by an impregnation method. Boehm titration, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, specific surface area analysis by the Brunauer–Emmett–Teller method, and thermogravimetric analysis were performed to investigate [C4mim]HSO 4 adsorption by the MWCNTs. The MWCNT-immobilized IL was used for Cr(VI) removal from a water phase. The adsorption properties of MWCNTs-COOH-immobilized [C4mim]HSO 4 were investigated by single-factor analysis. The results showed that the Cr(VI) removal rate was 52.14% and the adsorption capacity was 31.29 mg/g. The optimum adsorption conditions were as follows: initial Cr(VI) concentration, 60 mg/L; adsorbent dosage, 50 mg; pH 2.0; adsorption temperature 40 °C; and adsorption time, 200 min. Adsorption isotherm data fitted the Freundlich model, which indicates that the adsorption process was in line with the multimolecular layer adsorption theory. The Cr(VI) adsorption behaviors of the three adsorbents were consistent with a pseudo-second-order dynamic model. Thermodynamic analysis of the reaction systems was also performed. The Cr(VI) removal rates of MWCNTs-3, MWCNTs-OH-3, and MWCNTs-COOH-3 were 27.97, 9.39, and 7.34% lower than the initial removal rates after five cycles.

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Effects of soil components and solution inorganic cations on interactions of imidazolium-based ionic liquid with soils

Cited by 8 publications

References 52 publications

Environmental impacts, pollution sources and pathways of spent lithium-ion batteries

Environmental impacts, pollution sources and pathways of spent lithium-ion batteries

Effects of Concentration of Pore Solution on Stability of Ion‐Absorbed Rare Earth Ore Aggregate

Adsorption Separation of Cr(VI) from a Water Phase Using Multiwalled Carbon Nanotube-Immobilized Ionic Liquids

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