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High Surface Area "3D Graphene Oxide" for Enhanced Sorption of Radionuclides

Boulanger, Nicolas (författare)
Umeå universitet,Institutionen för fysik
Kuzenkova, Anastasiia S. (författare)
Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, Moscow, Russian Federation
Iakunkov, Artem (författare)
Umeå universitet,Institutionen för fysik
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Nordenström, Andreas (författare)
Umeå universitet,Institutionen för fysik
Romanchuk, Anna Yu. (författare)
Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, Moscow, Russian Federation
Trigub, Alexander L. (författare)
Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, Moscow, Russian Federation; National Research Centre “Kurchatov Institute”, Moscow, Russian Federation
Zasimov, Pavel V. (författare)
Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, Moscow, Russian Federation
Prodana, Mariana (författare)
Center for Surface Science and Nanotechnology, University Politehnica of Bucharest, Splaiul Independentei 313, Bucharest, Romania
Enachescu, Marius (författare)
Center for Surface Science and Nanotechnology, University Politehnica of Bucharest, Splaiul Independentei 313, Bucharest, Romania; Academy of Romanian Scientists, Splaiul Independentei 54, Bucharest, Romania
Bauters, Stephen (författare)
Helmholtz Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, Dresden, Germany; The Rossendorf Beamline at ESRF, The European Synchrotron, CS40220, Grenoble Cedex 9, France
Amidani, Lucia (författare)
Helmholtz Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, Dresden, Germany; The Rossendorf Beamline at ESRF, The European Synchrotron, CS40220, Grenoble Cedex 9, France
Kvashnina, Kristina O. (författare)
Helmholtz Zentrum Dresden-Rossendorf (HZDR), Institute of Resource Ecology, Dresden, Germany; The Rossendorf Beamline at ESRF, The European Synchrotron, CS40220, Grenoble Cedex 9, France
Kalmykov, Stepan N. (författare)
Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, Moscow, Russian Federation
Talyzin, Aleksandr V., 1969- (författare)
Umeå universitet,Institutionen för fysik
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 (creator_code:org_t)
2022-05-20
2022
Engelska.
Ingår i: Advanced Materials Interfaces. - : John Wiley & Sons. - 2196-7350. ; 9:18
Relaterad länk:
https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
https://urn.kb.se/re...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Here preparation of high surface area activated reduced graphene oxide (arGO) oxidized into a 3D analogue of defect-rich GO (dGO) is reported. Surface oxidation of arGO results in carbon to oxygen ratio C/O = 3.3, similar to the oxidation state of graphene oxide while preserving high BET surface area of about 880 m2 g−1. Analysis of surface oxidized arGO shows high abundance of oxygen functional groups which converts hydrophobic precursor into hydrophilic material. High surface area carbons provide the whole surface for oxidation without the need of intercalation and lattice expansion. Therefore, surface oxidation methods are sufficient to convert the materials into 3D architectures with chemical properties similar to graphene oxide. The "3D graphene oxide" shows high sorption capacity for U(VI) removal in an extraordinary broad interval of pH. Notably, the surface oxidized carbon material has a rigid 3D structure with micropores accessible for penetration of radionuclide ions. Therefore, the bulk "3D GO" can be used as a sorbent directly without dispersing, the step required for GO to make its surface area accessible for pollutants.

Ämnesord

NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)

Nyckelord

graphene
graphene oxide
high surface area
radionuclides
sorption

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

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