New Synthetic Routes to Polyoxometalate Containing Ionic Liquids

Herrmann, Sven

doi:10.1007/978-3-658-08796-8

Cited by 16 publications

(19 citation statements)

References 60 publications

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“…These size values were taken from ref. 31, with HPW taken as a representative of a Keggin anion and HP2W as a representative of a Dawson anion. The substitution of tungsten by molybdenum has a negligible influence on the volume of the POM resulting in a similar r value for PMo 3À and PW 3À .…”

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confidence: 99%

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Polyoxometalates in the Hofmeister series

et al. 2018

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confidence: 99%

“…Fitting parameters (R 2 always larger than 98.3%) obtained from a modified Langmuir model of the CP increase, see eqn(1). The volume charge density r is obtained by dividing the excess charge by the volume of Keggin type POMs (0.46 nm 3 ) and Dawson type POMs (0.68 nm 3 ) extracted from S. Herrmann31 …”

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confidence: 99%

Polyoxometalates in the Hofmeister series

et al. 2018

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“…During the same period Thangadurai and Tong [115] [117][118][119][120][121][122] Most of them revealed low melting point POM-IL and found applications for depollution, presents a typical glass transition temperature of -24.6 °C, [123] while TOA + salts of [PW 11 O 39 M(H 2 O)] 4-/5-(M = Mn, Fe, Co, Ni, Cu, Zn) obtained by Shakeela et al [124] displayed melting points in the range 87-108 °C. Table 2 tries to gather an exhaustive list of true POM-ILs identified in the literature.…”

Section: -3 An Original Promising Approach By Encapsulating Akali Counter-cationsmentioning

confidence: 98%

Designing Functional Polyoxometalate‐Based Ionic Liquid Crystals and Ionic Liquids

et al. 2019

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Polyoxometalate (POM) compounds constitute a wide family rich of more than several thousand inorganic compounds which can be finely tuned at the molecular level. Considering their high diversities in structures and properties, the incorporation of such inorganic components into liquid crystalline phases or ionic liquid phases is particularly relevant for the elaboration of functional materials. By adjusting the molecular structures of the anions and the nature of the counter cations, many authors designed different types of mesophases sometimes with application in optoelectronics, or true POM-based Ionic liquids (POM-ILs with melting temperature below 100 °C). The latter turn out to be highly interesting for various applications in catalysis, depollution, or protection of the historical heritage. This review focuses on the recent developments in these organic/inorganic hybrid materials, POMbased Ionic liquid crystal and POM-ILs and their applications.

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“…The polyanion was prepared according to the reported literature procedure [18]. Na 2 WO 4 ⋅4H 2 O (182 g, 0.55 mol) is dissolved in distilled water (300 mL) and the solution is heated to reflux.…”

Section: Synthesis Of K8 [α-Siw11o39]⋅13h2omentioning

confidence: 99%

“…ter decontamination [16] [17] [18]. On the other hand, POMs have low surface area; this disadvantage can be overcome by incorporation of the POM in different stable porous supports by formation of various composites.…”

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confidence: 99%

Methylene Blue Dye Adsorption onto Polyoxometalate Ionic Liquid Supported on Bentonite: Kinetic, Equilibrium and Thermodynamic Studies

Alsubaie¹,

Alshamrani²,

Domyati³

et al. 2021

OJPC

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The potential of polyoxometalate ionic liquid POM-IL supported on low-cost and available eco-friendly Saudi raw bentonite in the adsorption of MB cationic dye was investigated. For this purpose, TOA x [α-XW 11 O 39 ]@Bentonite (X = Si, P; TOA = TetraOctylAmmonium), namely SWB and PWB were prepared and characterized by IR, XRD, XRF, SEM, TEM and BET. Batch adsorption experiments showed that SWB and PWB have higher adsorption capacity than the raw bentonite with an enhancement of about 37% for SWB. The adsorption capacities of both SWB and PWB improved with increasing contact time and temperature and decreased with higher salt concentration in solution. The pH is shown to have insignificant effect on the adsorption of MB onto SWB and PWB. This result is quite meaningful in the adsorption process application since it makes pH complicated adjustment of the discharged contaminated water before treatment unnecessary. The Kinetic study expressed that the pseudo-second-order model described the adsorption process better than the pseudo first order. The experimental isotherm data were found to fit the Langmuir model compared to the Freundlich model with a maximum adsorption capacity 277.78 mg/g and 113.6 for PWB and SWB respectively. The thermodynamic parameters illustrated that the adsorption process was favorable, spontaneous and endothermic.

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New Synthetic Routes to Polyoxometalate Containing Ionic Liquids

Cited by 16 publications

References 60 publications

Polyoxometalates in the Hofmeister series

Polyoxometalates in the Hofmeister series

Designing Functional Polyoxometalate‐Based Ionic Liquid Crystals and Ionic Liquids

Methylene Blue Dye Adsorption onto Polyoxometalate Ionic Liquid Supported on Bentonite: Kinetic, Equilibrium and Thermodynamic Studies

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