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      Synthesis of sandwich-like Mn 3O 4@reduced graphene oxide nano-composites via modified Hummers' method and its application as uranyl adsorbents

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          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 Mn 3O 4@reduced graphene oxide (Mn 3O 4@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 Mn 3O 4@G nanocomposites possess a reasonable maximum equilibrium adsorption quantity 195.6 mg [U] g −1. Moreover, the magnetism of Mn 3O 4@G makes it easy to remove Mn 3O 4@G from water by strong magnet field.

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          Uranium(VI) adsorption on graphene oxide nanosheets from aqueous solutions

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            Adsorption of Uranium(VI) to Manganese Oxides: X-ray Absorption Spectroscopy and Surface Complexation Modeling

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              The retention of uranium and europium onto sepiolite investigated by macroscopic, spectroscopic and modeling techniques

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                Author and article information

                Contributors
                Journal
                Heliyon
                Heliyon
                Heliyon
                Elsevier
                2405-8440
                22 June 2019
                June 2019
                22 June 2019
                : 5
                : 6
                : e01972
                Affiliations
                [1]Institute of Materials, Chinse Academy of Engineering Physics, Mianyang, Sichuan province, 621700, China
                Author notes
                []Corresponding author. liyingru@ 123456caep.cn
                [∗∗ ]Corresponding author. renyiming@ 123456caep.cn
                Article
                S2405-8440(19)35592-6 e01972
                10.1016/j.heliyon.2019.e01972
                6595401
                f6188818-0bce-423c-a4db-8b36eb1a9252
                © 2019 Published by Elsevier Ltd.

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 18 September 2018
                : 9 April 2019
                : 17 June 2019
                Categories
                Article

                materials science,nuclear engineering,graphene,chemical processing,uranyl adsorbents,sandwich-like,mn3o4@reduced graphene oxide nano-composites

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