Improving of the adsorption capacity of halloysite nanotubes intercalated with dimethyl sulfoxide

Mahrez, Nouria; Bendenia, Souhila; Marouf-Khelifa, Kheira; Batonneau−Gener, Isabelle; Khelifa, Amine

doi:10.1080/09276440.2015.1036581

Cited by 24 publications

(10 citation statements)

References 32 publications

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“…Before the experiments, kaolin was ground, ultrasonically dispersed in deionised water, centrifuged and dried at 373 K, 10 g of kaolin were dispersed in 100 cm 3 of DMSO, and the whole is subjected to moderate stirring for 96 h at room temperature. The excess solution was removed, and the kaolin, separated by centrifugation, was oven dried at 333 K [23]. The starting materials and the resulting products were respectively abbreviated to K and KD and characterized.…”

Section: Methodsmentioning

confidence: 99%

Study of Methylene Blue Adsorption by Modified Kaolinite by Dimethyl Sulfoxide

Lellou

Kadi

Guemou

et al. 2020

Ecological Chemistry and Engineering S

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Tamazert kaolin was modified with dimethyl sulfoxide (DMSO). The starting material and resulting from the intercalation were characterized by X-ray diffraction, Fourier transform infrared spectroscopy and scanning electron microscopy (SEM). Intercalation caused considerable changes in our clay by increasing the basal spacing to 11.22 Å, an intercalation rate of 98 %. The adsorption of methylene blue was studied as a function of pH, contact time, temperature, dye concentrations and adsorbents. Kinetic data have been adequately described by the pseudo-second order and intraparticle scattering model. The adsorption isotherm is in good agreement with the Redlich-Peterson model. A change in thermodynamic values (ΔH°, ΔS° and ΔG°) was observed after intercalation. Adsorption became non-spontaneous exothermic and ordered.

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Section: Methodsmentioning

confidence: 99%

Study of Methylene Blue Adsorption by Modified Kaolinite by Dimethyl Sulfoxide

Lellou

Kadi

Guemou

et al. 2020

Ecological Chemistry and Engineering S

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“…The FTIR spectrum of the starting material ( Fig 6-H) shows two bands at 3704 and 3632 cm -1 attributed to the stretching vibrations of the inner surface and inner sheet hydroxyls, respectively [22]. The band at 3436 cm -1 indicates the stretch of interlayer water.…”

Section: Ftir Analysismentioning

confidence: 98%

Characterization and Spectroscopic Study of a Heat-Treated and Acid-Leached Halloysite Used in Congo Red Adsorption

Bessaha¹,

Mahrez²,

Bendenia³

et al. 2017

IJIES

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Algerian halloysite was heated at 600 °C and treated with HCl 5N. The materials were characterized by chemical analysis, TEM, and FT-IR spectroscopy, and used in the elimination of Congo red (CR) from aqueous solution. The effects of contact time and temperature were investigated. The thermal treatment at 600 °C results in the formation of dehydroxylated structure. Acid attack involves an increase in SiO2 content, due to the leaching of Al ions from octahedral sheet. Thermo-chemical treatment also diminishes the percentage of impurities and maintains the tubular morphology. Kinetic data follow the pseudo-second order model, whilst thermodynamic parameters lead to a not spontaneous and endothermic process. Significant changes occur in the vibrational spectrum of H600-5N (halloysite treated at 600 °C and with HCl 5N), after adsorption of Congo red, with the involvement of amino and sulfoxide groups. The mechanism highlights an outer-sphere surface complexation of SiOH....H2O species, i.e., SiOH linked to H2O via H-bonds.

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“…However, HNTs have only tiny exchangeable cation located in the interlayer, and therefore there are hardly exchangeable cations replaced by the intercalating agents. Actually, it has been proved that the micromolecules with intense polarity might be intercalated smoothly into the layered structure of HNTs [13][14][15][16][17][18][19][20][21][22][23][24]. For instance, Adamczyk et al [20] achieved the interlayer spacing of HNTs from 7.1 to 10.3 Å using formamide intercalation, and the intercalation complex was stable below 60°C.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, Adamczyk et al [20] achieved the interlayer spacing of HNTs from 7.1 to 10.3 Å using formamide intercalation, and the intercalation complex was stable below 60°C. Mahreza et al [21] studied dimethyl sulphoxide (DMSO)-intercalated HNTs with an interlayer spacing of 11.2 Å, which could be used as an adsorbent to adsorb crystal violet in aqueous solution. Horváth et al [22] reported that the hydrazine hydrate moieties were intercalated directly into the interlayer of HNTs through forming the hydrogen bonds between water and the surface hydroxyl groups into the interlayer.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study on intercalation in layered structure of halloysite nanotubes (HNTs)

Cheng

Cao

Liu

2019

Micro & Nano Letters

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The organic-intercalated clay composites have aroused attractable interest due to their tremendous application in industry. As a new type of the layered-structure material, halloysite nanotubes (HNTs) were employed to explore the intercalation relationship between the interlayer property and intercalating agents, which were more significant for the potential application. For this purpose, this work systematically studied the intercalation behaviours of dimethyl sulphoxide, potassium acetate, N-methylformamide, methanol, and acrylamide in the layered-structure HNTs, respectively. The organics-intercalated HNT composites were determined by a series of characterisations.

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Improving of the adsorption capacity of halloysite nanotubes intercalated with dimethyl sulfoxide

Cited by 24 publications

References 32 publications

Study of Methylene Blue Adsorption by Modified Kaolinite by Dimethyl Sulfoxide

Study of Methylene Blue Adsorption by Modified Kaolinite by Dimethyl Sulfoxide

Characterization and Spectroscopic Study of a Heat-Treated and Acid-Leached Halloysite Used in Congo Red Adsorption

Study on intercalation in layered structure of halloysite nanotubes (HNTs)

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