Adsorption of rubidium on raw and MTZ- and MBI-imogolite hybrid surfaces: An evidence of the chelate effect

Guerra, Denis L.; Batista, Adriano Corrêa; Viana, Rúbia Ribeiro; Airoldi, Cláudio

doi:10.1016/j.desal.2011.02.029

Cited by 45 publications

(22 citation statements)

References 47 publications

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“…Comparison of Fe 3 O 4 @SiO 2 @IIPs with other adsorbents for the adsorption of Li + and Rb + was listed in the Table . The adsorption capacities of Li + and Rb + are found to be larger than some of the reported adsorbents.…”

Section: Resultsmentioning

confidence: 94%

Simultaneous adsorption of Li(I) and Rb(I) by dual crown ethers modified magnetic ion imprinting polymers

et al. 2019

Applied Organom Chemis

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With the gradual exhaustion of land mineral resources, oceans and lakes have attracted world attention because they are abundant in inorganic mineral resources including lithium, potassium, rubidium and cesium. Lithium is becoming the key material in manufacturing of primary and secondary batteries used in various portable devices and hybrid/electric vehicles. Rubidium has been widely applied inglobal positioning satellites, magneto‐optic modulators, solid‐state lasers, phosphors, and glass manufacturing. In this work, a novel dual‐functional magnetic ion imprinting polymer (Fe3O4@SiO2@IIPs) powder was prepared using 12‐crown‐4 (12C4) and 18‐crown‐6 (18C6) as functional monomer, and characterized by FT‐IR, elemental analysis, XRD, TGA, SEM and TEM. The adsorption performance of Fe3O4@SiO2@IIPs for simultaneous adsorption of lithium and rubidium from simulative salt lakes was evaluated by batches of experiments at various pH values, contact time, and initial concentrations. Kinetic experiments show that the adsorption process followed the pseudo second order kinetic model. Langmuir adsorption isotherm model and Freundlich adsorption equilibrium data were fitted; the results show that Langmuir isotherm model is more suitable for the adsorption process. Additionally, Fe3O4@SiO2@IIPs exhibit specificity towards Li(I) and Rb(I) and low competitive behavior with Na(I), K(I) and Mg (II). Additionally, the selectivity properties, reusability and adsorption thermodynamic were also investigated. The obtained results show that the prepared Fe3O4@SiO2@IIPs material remains high adsorption capacities after five cycles, exhibits excellent abilities to simultaneously and selectively recover Li+ and Rb+ and have a promising application in the simultaneous adsorption of lithium and rubidium ions.

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Section: Resultsmentioning

confidence: 94%

Simultaneous adsorption of Li(I) and Rb(I) by dual crown ethers modified magnetic ion imprinting polymers

et al. 2019

Applied Organom Chemis

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“…In that case, imogolite nanotubes in aqueous media act as a solid support, being effective to stabilize the formation of Pt, Au, Ag and bimetallic nanoparticles [181,182]. These results pave the way towards potential uses of imogolite nanotubes for water treatment [183][184][185][186], antimicrobial agents [187,188], transparent dressings [189] and for catalysis applications [190].…”

Section: Environment Fieldmentioning

confidence: 99%

Nanomaterials From Imogolite: Structure, Properties, and Functional Materials

Paineau

Launois

2019

Nanomaterials From Clay Minerals

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Hollow cylinders with a diameter in the nanometer range are carving out prime positions in nanoscience. Thanks to their physico-chemical properties, they could be key elements for next-generation nanofluidics devices, for selective molecular sieving, energy conversion or as catalytic nanoreactors. Several difficult problems such as fine diameter and interface control are solved for imogolite nanotubes. This chapter will present an overview of this unique class of clay nanotubes, from their geological occurrence to their synthesis and their applications. In particular, emphasis will be put on providing an up-to-date description of their structure and properties, their synthesis and the strategies developed to modify their interfaces in a controlled manner. Developments on their applications, in particular for polymer/imogolite nanotubes composites, molecular confinement or catalysis, are presented.

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“…Such a nding is similar to that made in previous works on adsorption. 34,35 3.3. The interference of interfering ions 3.3.1.…”

Section: Batch Adsorptionmentioning

confidence: 99%

Rubidium ion Capture with a phosphotungstic acid-functionalized finger-citron-residue-based carbon

Liu

Zhao

Dai³

et al. 2019

RSC Adv.

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Adsorption of rubidium on raw and MTZ- and MBI-imogolite hybrid surfaces: An evidence of the chelate effect

Cited by 45 publications

References 47 publications

Simultaneous adsorption of Li(I) and Rb(I) by dual crown ethers modified magnetic ion imprinting polymers

Simultaneous adsorption of Li(I) and Rb(I) by dual crown ethers modified magnetic ion imprinting polymers

Nanomaterials From Imogolite: Structure, Properties, and Functional Materials

Rubidium ion Capture with a phosphotungstic acid-functionalized finger-citron-residue-based carbon

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