Rapid and economical synthesis of magnetic multiwalled carbon nanotube/iron oxide composite and its application in preconcentration of U(VI)

Zong, Pengfei; Gou, Jiayuan

doi:10.1016/j.molliq.2014.02.002

Cited by 20 publications

(3 citation statements)

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“…Fan et al [27] investigated removal of U(VI) from aqueous solutions by magnetic composite of Fe 3 O 4 @SiO 2 , showing maximum adsorption capacity of uranyl ions of 52 mg g −1 . Other reported modified magnetic nanoparticles showed moderate sorption capacities for uranyl ions and radioactive species [28][29][30][31].…”

Section: Introductionmentioning

confidence: 94%

CeO2–TiFe2O4 nanocomposite for effective removal of uranium ions from aqueous waste solutions

et al. 2019

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The present work deals with the preparation of Cerium oxide Titanium Ferrite (CTF) nanocomposite using a simple solvothermal method. The synthesized CTF nanocomposites were characterized using FT-IR, XRD, BET surface area, VSM and TEM. The adsorption action of CTF nanocomposite towards U(VI) was optimized using batch experiments by varying solution pH, initial concentration, sorbent dosage and rate of adsorption. The loaded uranium was efficiently desorbed using 0.1 M HNO 3. The Kinetic studies indicated that the adsorption process follows pseudo-second-order equation. Freundlich and Halsey adsorption isotherm was modeled, it proves the multilayers adsorption process. The calculated thermodynamic parameters show that the adsorption process of U(VI) onto CTF nanocomposite was spontaneous and endothermic in nature. The fabricated nanocomposite was applied successfully for removal of uranium species from waste solutions. The obtained results indicated that CTF nanocomposite was a promising and excellent adsorbent for uranium ions removal in comparison with other reported ones. Moreover, the process was very simple, fast and easily reusable several times.

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Section: Introductionmentioning

confidence: 94%

CeO2–TiFe2O4 nanocomposite for effective removal of uranium ions from aqueous waste solutions

et al. 2019

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“…Magnetic complexes with CNTs were reported for preconcentration/separation of U(IV), Cd(II), As(III), As(V), Ni(II), Pb(II), Zn(II) etc. [ 145 , 146 , 147 , 148 , 149 ]. However, sorption capacity and affinity of the analyte to CNTs can be improved by the attachment of additional ligands [ 148 , 150 ].…”

Section: Magnetic Nanoparticles In the Real Worldmentioning

confidence: 99%

Magnetic Nanoparticles: From Design and Synthesis to Real World Applications

et al. 2017

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The increasing number of scientific publications focusing on magnetic materials indicates growing interest in the broader scientific community. Substantial progress was made in the synthesis of magnetic materials of desired size, morphology, chemical composition, and surface chemistry. Physical and chemical stability of magnetic materials is acquired by the coating. Moreover, surface layers of polymers, silica, biomolecules, etc. can be designed to obtain affinity to target molecules. The combination of the ability to respond to the external magnetic field and the rich possibilities of coatings makes magnetic materials universal tool for magnetic separations of small molecules, biomolecules and cells. In the biomedical field, magnetic particles and magnetic composites are utilized as the drug carriers, as contrast agents for magnetic resonance imaging (MRI), and in magnetic hyperthermia. However, the multifunctional magnetic particles enabling the diagnosis and therapy at the same time are emerging. The presented review article summarizes the findings regarding the design and synthesis of magnetic materials focused on biomedical applications. We highlight the utilization of magnetic materials in separation/preconcentration of various molecules and cells, and their use in diagnosis and therapy.

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“…Over the last few decades there has been increasing global concern over the human health impacts, living resources and ecological system attributed to increase in environmental pollution by toxic radionuclides. The major cause of pollution is by discharged waste material of industries, and some other sources . Proper disposal and treatment of waste materials and removal of these toxic radionuclide pollutants are required to eliminate these problems from environment.…”

Section: Introductionmentioning

confidence: 99%

Poly(amidoamine) Dendrimer Functionalized Carbon Nanotube for Efficient Sorption of Trivalent f‐Elements: A Comparison Between 1^st And 2^nd Generation

et al. 2017

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Poly(amidoamine) dendrimer functionalized carbon nano tubes were synthesized, characterized and used for the sorption of americium from aqueous acidic waste solution. The sorption of Am3+ has been found to take place through pseudo second order kinetics with the rate constants of 8.61E‐05 and 5.38E‐05 mg g−1 min−1for 1st and 2nd generation, respectively, followingLangmuir isotherm. The MWCNT‐PAMAMG1 and MWCNT‐PAMAMG2 have high radiolytic stability. The stripping study revealed that EDTA can be effectively used for almost quantitative back extraction of metal ion from both generation of dendrimer. Luminescence investigation revealed the presence of single species with no inner sphere water molecule. The 1st generation dendrimer complex was found to be more asymmetric compared to the 2nd generation. The analysis of Judd Offelt parameters and evaluation of photo‐physical properties were carried out to understand the complexation of Am3+ with these sorbents.

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Rapid and economical synthesis of magnetic multiwalled carbon nanotube/iron oxide composite and its application in preconcentration of U(VI)

Cited by 20 publications

References 50 publications

CeO2–TiFe2O4 nanocomposite for effective removal of uranium ions from aqueous waste solutions

CeO2–TiFe2O4 nanocomposite for effective removal of uranium ions from aqueous waste solutions

Magnetic Nanoparticles: From Design and Synthesis to Real World Applications

Poly(amidoamine) Dendrimer Functionalized Carbon Nanotube for Efficient Sorption of Trivalent f‐Elements: A Comparison Between 1^st And 2^nd Generation

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Rapid and economical synthesis of magnetic multiwalled carbon nanotube/iron oxide composite and its application in preconcentration of U(VI)

Cited by 20 publications

References 50 publications

CeO2–TiFe2O4 nanocomposite for effective removal of uranium ions from aqueous waste solutions

CeO2–TiFe2O4 nanocomposite for effective removal of uranium ions from aqueous waste solutions

Magnetic Nanoparticles: From Design and Synthesis to Real World Applications

Poly(amidoamine) Dendrimer Functionalized Carbon Nanotube for Efficient Sorption of Trivalent f‐Elements: A Comparison Between 1st And 2nd Generation

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Product

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Poly(amidoamine) Dendrimer Functionalized Carbon Nanotube for Efficient Sorption of Trivalent f‐Elements: A Comparison Between 1^st And 2^nd Generation