Nanosilica reinforced ion-exchange polyHIPE type membrane for removal of nickel ions: Preparation, characterization and adsorption studies

Moghbeli, Mohammad Reza; Khajeh, Afsaneh; Alikhani, Mahsa

doi:10.1016/j.cej.2016.10.048

Cited by 53 publications

(31 citation statements)

References 47 publications

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“…Despite many reports of poly(HIPE) materials for first‐row transition metal, platinum group metal, and rare earth element sequestration, only a few describe their utility for actinide separations. Recent work by Benicewicz and co‐workers successfully demonstrated the incorporation of vinylpyridine monomers into styrenic poly(HIPE)s resulting in Pu uptake via an anion‐exchange mechanism.…”

Section: Introductionmentioning

confidence: 99%

Leveraging Actinide Hydrolysis Chemistry for Targeted Th and U Separations using Amidoxime‐Functionalized Poly(HIPE)s

et al. 2020

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Polymerized high internal phase emulsions (poly(HIPE)s) are porous polymer monoliths whose synthesis can easily be tailored to allow incorporation of functional units. In this work, nitrile containing poly(HIPE)s have been prepared with either acrylonitrile (AN) or 4‐cyanostyrene (4CS) comonomers. Post‐synthetic modification of these nitrile‐containing poly(HIPE)s yields their corresponding amidoximated analogues, which were studied for actinide uptake. These amidoxime‐functionalized, porous polymers were shown to adsorb 95 % Th4+ species from aqueous solution within 30 minutes. In contrast to other amidoxime containing polymers the uptake of UO22+ in these poly(HIPE)s is lower under similar conditions. A critical analysis of actinide separations and high‐energy X‐ray scattering data provides insight into the polymers’ selectivity, enabled by the uptake of multinuclear Th clusters.

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Section: Introductionmentioning

confidence: 99%

Leveraging Actinide Hydrolysis Chemistry for Targeted Th and U Separations using Amidoxime‐Functionalized Poly(HIPE)s

et al. 2020

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“…High internal phase emulsion (HIPE, emulsion with internal phase exceeds 74%) has been found to considerably create highly porous polymeric monolith (referred as polyHIPE) . Due to the special properties of low density, high porosity, interconnected pore structure, and high permeability, polyHIPE is used as adsorbents, catalyst carriers, and separation medium . Typically, traditional polyHIPE possesses large spherical cavities with interconnecting holes on the wall.…”

Section: Introductionmentioning

confidence: 99%

Heparin‐Immobilized Polymeric Monolithic Column with Submicron Skeletons and Well‐Defined Macropores for Highly Efficient Purification of Enterovirus 71

Liu

Yin

et al. 2018

Macro Materials & Eng

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In this study, glycidyl methacrylate‐based polymerized high internal phase emulsion monolithic column (polyHIPE) with submicron skeletons and well‐defined macropores is prepared and functionalized by immobilizing heparin to obtain a novel affinity chromatographic separation medium for effective purification of Enterovirus 71 (EV71). The pore structure of the obtained monoliths differs significantly from conventional polyHIPE monoliths. The prepared polyHIPE presents well‐defined 3D network skeletons of 0.2–0.5 µm, interconnected macropores of 0.5–2 µm, large specific surface area (47–61 m2 g−1), and excellent permeability (k = 1.0 × 10−13 m2). Further, successful immobilization of heparin is proved by FTIR and XPS and the monoliths display superiority in the purification of EV71 from culture supernatant. The final recovery and binding capacity of EV71 are calculated to be 60% and 152.8 ng per column, respectively. SDS‐PAGE gel electrophoresis and TEM analysis indicate a high efficiency in the removal of impurities from culture supernatant of EV71. This, together with easy fabrication, makes polyHIPE monolith a promising alternative to commercially available monolithic supports for virus purification.

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“…To remove heavy metals and recycle wastewater, diverse processing methods, which have both advantages and disadvantages, have been exploited, such as chemical precipitation, adsorption, ion exchange and membrane separation. 7,8 Among these methods, membrane ltration is an alternative technology that can work in continuous operation and cause no secondary pollution; also, it can be used on both large and small scales. These advantages demonstrate that the membrane ltration technique has potential applications in the treatment of wastewater containing heavy metal ions.…”

Section: Introductionmentioning

confidence: 99%

Three-channel capillary NF membrane with PAMAM-MWCNT-embedded inner polyamide skin layer for heavy metals removal

Zhang

Sun

2018

RSC Adv.

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Nanosilica reinforced ion-exchange polyHIPE type membrane for removal of nickel ions: Preparation, characterization and adsorption studies

Cited by 53 publications

References 47 publications

Leveraging Actinide Hydrolysis Chemistry for Targeted Th and U Separations using Amidoxime‐Functionalized Poly(HIPE)s

Leveraging Actinide Hydrolysis Chemistry for Targeted Th and U Separations using Amidoxime‐Functionalized Poly(HIPE)s

Heparin‐Immobilized Polymeric Monolithic Column with Submicron Skeletons and Well‐Defined Macropores for Highly Efficient Purification of Enterovirus 71

Three-channel capillary NF membrane with PAMAM-MWCNT-embedded inner polyamide skin layer for heavy metals removal

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