Magnetoresponsive polymer networks as adsorbents for the removal of U(VI) ions from aqueous media

Ilia, Rafaella; Liatsou, Ioanna; Savva, Ioanna; Vasile, Eugenia; Vékás, L.; Marinică, Oana; Mpekris, Fotios; Pashalidis, Ioannis; Krasia‐Christoforou, Theodora

doi:10.1016/j.eurpolymj.2017.10.005

Cited by 22 publications

(15 citation statements)

References 41 publications

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“…18 Polymer adsorbents have excellent adsorption capacity towards metal ions, but their ability to remove organic dyes is poor. 19 Silicates have the advantages of rich content, eco-friendliness and inexpensiveness and are suitable for use as adsorbents. [20][21][22] Magnesium silicates can potentially adsorb cationic dyes because of their large surface area and surfaces rich with hydroxyl groups.…”

Section: Introductionmentioning

confidence: 99%

Preparation of magnesium silicate/carbon composite for adsorption of rhodamine B

et al. 2018

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Section: Introductionmentioning

confidence: 99%

Preparation of magnesium silicate/carbon composite for adsorption of rhodamine B

et al. 2018

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“…These include carbon‐based materials, 17,18 MOFs, 19,20 clays 21 and polymers and polymer‐based nanocomposites 22 . Moreover, in the last years the development of magnetoactive adsorbents for radioactive metal ions has attracted considerable attention since the magnetic properties of such materials enable their facile removal from aqueous media by means of an externally applied magnetic field, upon completion of the adsorption process 23–25 …”

Section: Introductionmentioning

confidence: 99%

Superparamagnetic polyvinylpyrrolidone/chitosan/Fe₃O₄ electrospun nanofibers as effective U(VI) adsorbents

Philippou

Christou

Socoliuc

et al. 2020

J of Applied Polymer Sci

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Magnetoactive electrospun fibrous membranes consisting of polyvinylpyrrolidone (PVP), chitosan (CS) and pre‐fabricated, double‐layer oleic acid‐coated magnetite nanoparticles (OA.OA.Fe3O4) were fabricated and evaluated as new adsorbent materials for the removal and recovery of uranium (U(VI)) from aqueous solutions. The adsorption has been investigated by batch‐type experiments and the solid material has been characterized by X‐ray diffraction spectroscopy (XRD), Fourier‐transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy/energy dispersive X‐ray analysis (TEM/EDX) and vibration sample magnetometry (VSM) measurements prior and after uranium adsorption. The experimental adsorption data were found to be well fitted with the Langmuir isotherm and the pseudo‐second order kinetic model. The results indicate that PVP/CS/OA.OA.Fe3O4 fibrous adsorbents exhibit good adsorption properties towards U(VI) in aqueous solutions, achieving a qmax value of 0.77 mol kg−1 (183.3 mg g−1) at pH 6.0. The experiments regarding the regeneration and reuse of the magnetoactive adsorbents were carried out using Na2CO3, at pH ~11. After four cycles, the percentage relative adsorption remained stable (~100%) whereas the desorption percentage decreased from 31.9% to 21.0%. Generally, the presented results demonstrate that the incorporation of the Fe3O4 NPs has a positive effect on the adsorption efficiency of U(VI) from aquatic environments.

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“…Polymer/Fe 3 O 4 magnetic nanocomposites are a kind of polymeric magnetic nanocomposites with magnetism obtained via a certain method for combining organic polymer and inorganic magnetic nanoparticles [5][6][7][8][9]. This type of magnetic nanocomposites has received a great deal of interest mainly due to its various applications, including magnetic separation, which is a relatively rapid and facile approach in comparison with other separation strategies [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of poly(styrene-block-acrylic acid)/Fe3O4 magnetic nanocomposite using reversible addition−fragmentation chain transfer polymerization

et al. 2019

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A well-de ned amphiphilic poly(styrene-block-acrylic acid) (PSt-b-PAA) block copolymer to prepare a magnetic nanocomposite was synthesized by reversible additionfragmentation chain transfer (RAFT) polymerization. The synthesized PSt and PSt-b-PAA copolymer was characterized using FTIR and 1 H NMR spectroscopies as well as GPC analysis. Afterwards, a PSt-b-PAA/Fe 3 O 4 magnetic nanocomposite was fabricated through the incorporation of Fe3O4 nanoparticles (NPs) into the synthesized block copolymer. The morphology of the fabricated magnetic nanocomposite was observed using SEM and TEM. The SEM image revealed that the PSt-b-PAA/Fe3O4 magnetic nanocomposite had spherical morphology with the mean diameter of 100 nm, approximately. In addition, thermal properties of the synthesized polymers as well as the magnetic nanocomposite were studied using DSC and TGA analyses. The developed nanocomposite may be applied for enzyme immobilization and cell separation.

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Magnetoresponsive polymer networks as adsorbents for the removal of U(VI) ions from aqueous media

Cited by 22 publications

References 41 publications

Preparation of magnesium silicate/carbon composite for adsorption of rhodamine B

Preparation of magnesium silicate/carbon composite for adsorption of rhodamine B

Superparamagnetic polyvinylpyrrolidone/chitosan/Fe₃O₄ electrospun nanofibers as effective U(VI) adsorbents

Synthesis and characterization of poly(styrene-block-acrylic acid)/Fe3O4 magnetic nanocomposite using reversible addition−fragmentation chain transfer polymerization

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Magnetoresponsive polymer networks as adsorbents for the removal of U(VI) ions from aqueous media

Cited by 22 publications

References 41 publications

Preparation of magnesium silicate/carbon composite for adsorption of rhodamine B

Preparation of magnesium silicate/carbon composite for adsorption of rhodamine B

Superparamagnetic polyvinylpyrrolidone/chitosan/Fe3O4 electrospun nanofibers as effective U(VI) adsorbents

Synthesis and characterization of poly(styrene-block-acrylic acid)/Fe3O4 magnetic nanocomposite using reversible addition−fragmentation chain transfer polymerization

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Superparamagnetic polyvinylpyrrolidone/chitosan/Fe₃O₄ electrospun nanofibers as effective U(VI) adsorbents