Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 1, Issue 3, Pages 644-650Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ta00371f
Keywords
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Funding
- Chinese Academy of Science
- National Nature Science Foundation of China [11172301, 21203217]
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Graphene as an important two-dimensional one-atom-thick nanosheet can be regarded as a solid and also a molecule. In this paper, we focused attention on the coordination ability of doping-induced defects, micro-scale size and atomic thickness of graphene, and anchored oxygen-donor coordination of graphene oxide to ferric ions, forming a giant flat iron complex. As well as graphene oxide, as-obtained graphene oxide-Fe(III) complexes were characterized by transmission electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, and so on. It was demonstrated that graphene oxide-Fe(III) complexes could be well dispersed in water, with size up to micrometers and atomically thin. Under visible-light irradiation, graphene oxide-Fe(III) complexes displayed homogeneous catalytic ability of H2O2 activation, and could be easily removed by simple filtration or centrifugation, showing significant advantages in both homogeneous and heterogeneous catalysis.
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