Efficient removal of U(VI) from aqueous solutions via an activated 3D framework carbon

A three-dimensional (3D) activated framework carbon (3D AFC) was prepared in our research group and applied to adsorb U(VI) from radioactive waste water. Meanwhile, The effects of solid–liquid ratio, contact time, pH value, ionic strength and ionic concentration of adsorbate on the adsorption of U(VI) by the 3D AFC were studied. The calculated maximum adsorption capacity of 3D AFC was 127.5 mg/g under the condition that pH was 5.8. Combined with the properties of excellent three-dimensional network structure, simple synthesis methodology, and the adsorption capacity for U(VI), 3D AFC is considered to be feasible for recycling U(VI) from waste water solutions.