An environmentally friendly magnetic biochar was successfully prepared for the efficient removal of uranium(VI) from wastewater. The results of batch adsorption experiments showed that the uranium ...

The cation exchange capability of carboxylate functional group in graphene oxide is explored for uranium adsorption. The magnetic graphene oxide (MGO) composite was prepared from graphene oxide and magnetite (Fe 3 O 4) to exercise magnetic separation of uranium from the aqueous phase.Characterization by XRD, Raman, …

One-pot magnetic separation of uranium (U) in seawater and groundwater samples has been made possible by synthesizing phosphoramidate functionalized Ag coated citrate-Fe 3 O 4 nanoparticles (NPs). The magnetic saturation value of these functionalized NPs is 27.1 emu g −1.The synergistic extraction mechanism of U(VI) ion …

Uranium (U (VI)) stands as a critical raw material for nuclear power generation, with standards dictating that the U (VI) content per liter of water should not exceed 50 μg. ... After the reaction was completed, the Fe 3 O 4 /CNT nanocomposite was obtained by magnetic separation. The product was then washed alternately with water …

The recovery of uranium from nuclear waste solution is of great importance for sustainable nuclear energy and environmental remediation. Various magnetic metal oxides have been widely utilized to remove uranium from aqueous solution due to environmental friendly, low cost, facile synthesis, high adsorption capacity and simple …

The separation of uranium oxide (UO2) particles from soil-surrogate particles in aqueous suspensions was achieved using filtration enhanced by a magnetic field. Enhanced attraction of paramagnetic UO2 colloids to a ferromagnetic stainless-steel filter placed in a strong magnetic field arises because of the positive magnetic susceptibility of the …

Criteria were developed for the selection of candidate wastes for testing the magnetic separation of uranium or other paramagnetic materials or both. A survey of Department of Energy (DOE) hazardous wastes was conducted to determine good candidates for bench-scale magnetic separation tests. Representatives of 21 DOE sites were contacted, and ...

Criteria were developed for selection of candidate wastes for testing magnetic separation of uranium and/or other paramagnetic materials. A survey of Department of Energy (DOE) hazardous wastes was conducted to determine good candidates for bench-scale magnetic separation tests. Representatives of 21 DOE sites were contacted, and materials were ...

One-pot magnetic separation of uranium (U) in seawater and groundwater samples has been made possible by synthesizing phosphoramidate functionalized Ag coated citrate-Fe3O4 nanoparticles (NPs).

In addition, the uranium(VI)-loaded Fe3O4@C nanoparticles can be recovered easily from aqueous solution by magnetic separation and regenerated by acid treatment.

Basically, electromagnetic separation methods use magnetic and electronic forces to manipulate charged isotopic species. In this process uranium tetrachloride (UCI 4), a …

DOI: 10.1016/j.seppur.2021.120140 Corpus ID: 244297993; Effective separation of uranium(VI) from wastewater using a magnetic carbon as a recyclable adsorbent @article{Liao2021EffectiveSO, title={Effective separation of uranium(VI) from wastewater using a magnetic carbon as a recyclable adsorbent}, author={Jun Liao and Ting Xiong …

The three massive Manhattan Project facilities at Oak Ridge— the Y-12 Electromagnetic Isotope Separation Plant, the K-25 Gaseous Diffusion Plant, and the S …

Regenerated uranyl nitrate was enriched by an isotope of uranium ${}^{235}{rm U}$ (degree $alpha = 0.00464$). Uranium tetrafluoride was depleted by an isotope of uranium ${}^{235}{rm U}$ (degree $beta = 0.00446$). Uranium isotopes are separated by the magnetic isotope effect (MIE) in uranyl nitrate photoreduction.

A three-component composite, Fe3O4@C@layered double hydroxide (Fe3O4@C@Ni–Al LDH), was prepared through a two-step layer-by-layer route. The carbon-coated Fe3O4 nanoparticles (Fe3O4@C) were ...

Magnetic separation of uranium by CoFe 2 O 4 hollow spheres. Author links open overlay panel Jinbo Wei a, Xiaofei Zhang a, Qi Liu a, Zhanshaung Li a, Lianhe Liu b, Jun Wang a b. Show more. ... This work offers a facile method to prepare polyamidoxime-based membranes for uranium separation and concentration at …

In this work, we report a strategy for highly selective separation and facile recovery for uranium from SLLWs by thermal-responsive uranyl ion-imprinted magnetic …

In addition, the uranium(VI)-loaded Fe 3 O 4 @C nanoparticles can be recovered easily from aqueous solution by magnetic separation and regenerated by acid treatment. Present study suggested that magnetic Fe 3 O 4 @C composite particles can be used as an effective and recyclable adsorbent for the removal of uranium(VI) from …

Therefore, the efficient removal and separation of uranium in acid wastewater is an important task to reduce uranium pollution and realize the recycling of uranium resources. Currently, ... Magnetic separation of uranium by CoFe 2 O 4 hollow spheres. Chem. Eng. J., 241 (2014), pp. 228-234, 10.1016/j.cej.2013.12.035.

Uranium tetrafluoride was depleted by an isotope of uranium ${}^{235}{rm U}$ (degree $beta = 0.00446$). Uranium isotopes are separated by the magnetic isotope effect (MIE) in uranyl nitrate ...

1. Introduction. Among the different iron oxides, magnetite (Fe 3 O 4), maghemite (γ -Fe 2 O 3) and hematite (α-Fe 2 O 3) are popular candidates for the separation of heavy metal elements from the aquatic environment [[1], [2], [3]].The magnetic properties of these iron oxides significantly differ from each other, primarily …

MAGNETIC ISOTOPE EFFECT IN THE URANIUM ISOTOPES SEPARATION I.V.Zhyganiuk Institute for Safety Problems of Nuclear Power Plants, Nat. Acad. of Sci. of Ukraine 36a, Kirova str., Chornobyl 07270, ... magnetic field of uranium nucleus235U. An uranoyl UO+ 2 is a singly charged complex of uranyl-ionwithunpairedelectron. …

Magnetic separation of uranium by CoFe 2 O 4 hollow spheres. Chem. Eng. J. (2014) Y. Xiao et al. Functionalized maghemite nanoparticles for enhanced adsorption of uranium from simulated wastewater and magnetic harvesting. Environ. Res. (2023) J. Liao et al.

The slight mass difference between uranium-235 and uranium-238 means that the two isotopes are affected differently by the magnetic field. The lighter isotope, uranium-235, therefore, can be separated physically from the heavier uranium-238 into different …

Request PDF | Succinic acid functionalized magnetic mesoporous silica for the magnetic assisted separation of uranium from aqueous solution | The magnetite embedded mesoporous silica was prepared ...

After five cycles, the removal percentage of uranium(VI) on the magnetic biochar still exceeded 90%, which displayed that the magnetic biochar possessed excellent reusability for removing uranium(VI). It was worth mentioning that the biochar-based adsorbents were easy to be recovered from solution after doping magnetic iron oxide …

The separation of uranium oxide (UO 2) particles from soil-surrogate particles in aqueous suspensions was achieved using filtration enhanced by a magnetic field.Enhanced attraction of paramagnetic UO 2 colloids to a ferromagnetic stainless-steel filter placed in a strong magnetic field arises because of the positive magnetic susceptibility of the …

It was worth mentioning that the maximum adsorption capacity of the magnetic biochar-hydroxyapatite composite with nickel chloride as the magnetic source reached 1723.5 mg/g and the residual concentration of uranium in the solution could reach the limit standard of China for the discharge of uranium-containing wastewater at low …

Methodologies to achieve efficient and selective uranium separation originating from nuclear waste are desirable. Here the authors report the in-situ …

Isotope Separation Methods. Once the power that was hidden in uranium became evident, the emphasis shifted to methods to separate the much more potent U-235 from its abundant relative, U-238. …