Characterization and Functionality of Immidazolium Ionic Liquids Modified Magnetic Nanoparticles

Li, Ying; Tang, Ning; Inagaki, Fuyuhiko; Mukai, Chisato; Hayakawa, Kazuichi

doi:10.1155/2013/861021

Cited by 4 publications

(3 citation statements)

References 24 publications

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“…8). 87 The solubility of these NPs in organic solvents depends on the alkyl chain length and the anions of the ionic liquids. Moreover, the resulting NPs showed a specic extraction efficiency to the organic pollutants, polycyclic aromatic hydrocarbons, while the superparamagnetic property of the NPs facilitated the convenient separation of MNPs from the bulk water samples.…”

Section: Solubilization Of Mnps By Functionalizationmentioning

confidence: 99%

Solubilization, dispersion and stabilization of magnetic nanoparticles in water and non-aqueous solvents: recent trends

et al. 2014

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Section: Solubilization Of Mnps By Functionalizationmentioning

confidence: 99%

Solubilization, dispersion and stabilization of magnetic nanoparticles in water and non-aqueous solvents: recent trends

et al. 2014

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“…In addition, the modification of the polarity and hydrophilic oil-wet properties, which by selecting appropriate anion and cation, can change the solubility of MILs in organic solvent and their surface tension . Owing to these features, MILs can be widely used as a key material for green chemistry on solvents, surfactants, and catalysts. − Therefore, they have attracted increasing interest in the field of organic synthesis, separation, analysis, nanomaterial preparation, etc. − …”

Section: Introductionmentioning

confidence: 99%

Investigation of Surface and Solubility Properties of N-Vinylimidazolium Tetrahalogenidoferrate(III) Magnetic Ionic Liquids Using Density Functional Theory

Tian

Guan

et al. 2016

J. Chem. Eng. Data

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N-Vinyl-3-alkylimidazolium tetrahalogenidoferrate(III) ([VRIM][FeX4], X4 = Cl3Br, Cl4) and N-vinyl-3-esterimidazolium tetrachloroferrate(III)([VEIM][FeCl4]) magnetic ionic liquids were synthesized. They were characterized by 1H NMR, Raman, electrospray ionization mass spectrometry, differential scanning calorimetry and thermogravimetric analysis. Through Gaussian09/B3LYP/LANL2DZ density functional theory, the interaction energies of ion pairs and dipole moment of [VRIM][FeX4] and [VEIM][FeCl4] were obtained. The relationships between the surface tensions and temperature, molecular structure, and interaction energies of ion pairs along with the relationships between the solubility and molecular structure, common solvents, and interaction energies of ion pairs were discussed systematically. The relationship between the surface tensions and solubility parameter for [VRIM][FeX4] was expressed by using a Hildebrand–Scoff equation. And the hydrophilic–lipophilic balance (HLB) values of [VRIM][FeX4] were obtained by a solubility parameter. The results showed that surface tension decreased linearly with temperature and decreased with the elongation of alkyl chain length on cation and the decrease of interaction energies of ion pairs; With decreasing dielectric constant of solvent, the solubility of the title magnetic ionic liquids increased first and then decreased; with the elongation of alkyl chain length, the interaction energies of ion pairs and HLB value decreased, and the solubility in polar solvents had a decreasing trend.

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“…Modification of silica by imidazole increased its Cr(VI) uptake significantly (7). Moreover, magnetic nanoparticles modified with ILs showed specific extraction efficiency to organic pollutant and polycyclic aromatic hydrocarbons (8). Modification of Ca-montmorillonite (MMT) with imidazolium of different chain lengths increased its chromate sorption capacity from essentially none to 190 mmol/kg (9).…”

Section: Introductionmentioning

confidence: 99%

Ionic liquid modification of zeolite and its removal of chromate from water

Jiang

et al. 2014

Green Chemistry Letters and Reviews

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2014) Ionic liquid modification of zeolite and its removal of chromate from water, Green Chemistry Letters and Reviews, 7:2,[191][192][193][194][195][196][197][198] This study focused on using imidazolium of different chain lengths to modify the negatively charged zeolite. The modification involves a cation exchange process of the organic cations of ionic liquids (ILs) for the alkali and alkaline earth elements on zeolite surfaces. X-ray diffraction analyses revealed that the uptake of ILs was on the external surfaces. Fourier transform infrared analyses showed that different mechanisms were attributed to IL uptake on zeolite at below and above the external cation exchange capacity. After modification, the zeolite reversed its surface charge to positive, thus enhancing adsorptive removal of anionic contaminants such as chromate from water. At the same time, the modified zeolite increased their total organic carbon content, and thus could promote better adsorptive removal of hydrophobic organic contaminants from water, too. These features enable IL-modified zeolite to be used as inexpensive sorbents for the removal of multi-types of contaminants from water simultaneously.

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Characterization and Functionality of Immidazolium Ionic Liquids Modified Magnetic Nanoparticles

Cited by 4 publications

References 24 publications

Solubilization, dispersion and stabilization of magnetic nanoparticles in water and non-aqueous solvents: recent trends

Solubilization, dispersion and stabilization of magnetic nanoparticles in water and non-aqueous solvents: recent trends

Investigation of Surface and Solubility Properties of N-Vinylimidazolium Tetrahalogenidoferrate(III) Magnetic Ionic Liquids Using Density Functional Theory

Ionic liquid modification of zeolite and its removal of chromate from water

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