Abstract
Based on the two-dimensional graphene' s flexible properties, we constructed the 3D graphene with topological structure, and loaded the Rh QDs on it to prepare the Rh QDs/3DGR catalyst, which was used for the photocatalytic hydrogen production reaction. The topological structure of 3D graphene could eliminate anisotropy of electrons and promote the electrons transfer in the graphene layers, which improved the electron transfer rate and the activity and stability of catalyst. The amount of H-2 reached 794.2 mu mol in 120 min over EY-sensitized Rh/3DGR catalyst, and the corresponding AQE was 12.6% (520 nm). In addition, the Rh/3DGR catalyst showed the largest transient photocurrent, the lowest overpotential (-0.34 V) and the longest fluorescence lifetime (1.37 ns).
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