期刊
CHEMPHYSCHEM
卷 15, 期 5, 页码 942-949出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201301140
关键词
glycerol; hydrogen; photocatalysis; titanium dioxide; transition metals
资金
- Research Corporation for Science Advancement (RCSA) [20241]
- Rutgers University [202221]
- Rutgers University-Camden
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 molm(-2)h(-1), N-Ni-TiO2 is five-fold more active than P25, and N-Cu-TiO2 is 44-fold more active. The photocatalytic activity of N-M-TiO2 increases from Cr to Co and Ni, whereas the photoluminescence decreases; the change in activity is due to the modulation of charge recombination.
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