The need for renewable energy focuses attention on hydrogen obtained by using sustainable and green methods. The sustainable compound glycerol can be used for hydrogen production by heterogeneous photocatalysis. A novel approach involves the promotion of the TiO2 photocatalyst with a binary combination of nitrogen and transition metal. We report the synthesis and spectroscopic characterization of the new N-M-TiO2 photocatalysts (M=none, Cr, Co, Ni, Cu), and the photocatalytic reforming of glycerol to hydrogen under ambient conditions and near-UV or visible light versus benchmark P25 TiO2. In units of activity μmol m-2 h-1, N-Ni-TiO2 is five-fold more active than P25, and N-Cu-TiO 2 is 44-fold more active. The photocatalytic activity of N-M-TiO 2 increases from Cr to Co and Ni, whereas the photoluminescence decreases; the change in activity is due to the modulation of charge recombination. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
CITATION STYLE
Taylor, S., Mehta, M., & Samokhvalov, A. (2014). Production of hydrogen by glycerol photoreforming using binary nitrogen-metal-promoted N-M-TiO2 photocatalysts. ChemPhysChem, 15(5), 942–949. https://doi.org/10.1002/cphc.201301140
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