The magnetic adsorbent Fe3O4/P(DMAA–DMP) prepared by distillation-precipitation polymerization not only showed an outstanding adsorption efficiency for uranium in highly acidic solution, but had an excellent acid resistance.
Recovery of uranium from strong acidic solution using magnetic nanoparticles as adsorbents is very important for sustainable nuclear energy, due to their superparamagnetic character and high adsorption efficiency for uranium....
Recovery of uranium from aqueous solutions using core-shell superparamagnetic polymer nanomaterials as efficient adsorbents might be helpful for environmental protection, due to their excellent structure stability, high concentration of accessible...
It is still an important work to develop the novel technologies for the highly extraction of uranium from aqueous solution for resource sustainability and environmental safety. Herein, a novel phosphonic...
The development of adsorption materials which can efficiently isolate and enrich uranium is of great scientific significance to sustainable development and environmental protection. In this work, a novel phosphonic acid-functionalized magnetic microsphere adsorbent Fe3O4/P (GMA-MBA)-PO4 was developed by functionalized Fe3O4/P (GMA-MBA) prepared by distill-precipitation polymerization with O-phosphoethanolamine. The adsorption process was endothermic, spontaneous and kinetically followed the pseudo second-order model. The maximum uranium adsorption capacity obtained from the Langmuir model was 333.33 mg g−1 at 298 K. In addition, the adsorbent also had good acid resistance and superparamagnetic properties, which could be quickly separated by a magnetic field. XPS analysis showed that the adsorption of adsorbent mainly depended on the complexation of phosphonic acid group with uranium. This work offers a promising candidate for the application of magnetic adsorbents in the field of uranium separation and enrichment.
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