Abstract
Efficient and sustainable remediation technologies for uranium have recently been gaining more and more interest. Adsorption techniques are facile, effective and universal for kinds of heavy metal ions. In this paper, sandwich-like Mn3O4@reduced graphene oxide (Mn3O4@G) nano-composites were prepared facilely and greenly by adding NaOH solution into crude graphite oxide suspension prepared via the Hummers' method to modify the pH. The Mn3O4@G nanocomposites possess a reasonable maximum equilibrium adsorption quantity 195.6 mg [U] g−1. Moreover, the magnetism of Mn3O4@G makes it easy to remove Mn3O4@G from water by strong magnet field.
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