Abstract
Metallic photocatalysts are materials that present a metallic behaviour relating to the mobility of the electron in their energy band. Conduction and valence bands in metallic conductors are very close or overlap; thus these materials have a small or absent energy gap separating the occupied and empty energy levels. Graphene, for its turn, is an atom-thick sheet of sp2-hybridized carbons that is considered a zero bandgap semimetal material. It has an electrical band structure that permits a very rapid conduction, i.e. electrons have high mobility with little scattering, thus acting like an electron pool, promoting charge separation and rapid transfer in photocatalytic applications. In this chapter a brief review of the main methods to obtain graphene and derivative graphene oxide and reduced graphene oxide is presented, alongside with examples of their use in photocatalysis.
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Alves, A.K. (2019). Graphene and Allies as a Part of Metallic Photocatalysts. In: Inamuddin, Sharma, G., Kumar, A., Lichtfouse, E., Asiri, A. (eds) Nanophotocatalysis and Environmental Applications . Environmental Chemistry for a Sustainable World, vol 29. Springer, Cham. https://doi.org/10.1007/978-3-030-10609-6_7
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