Photocatalytic Hydrogen Production from Aqueous Solutions of Alcohol as Model Compounds of Biomass Using Visible Light-Responsive TiO2 Thin Films

2008 ◽  
Vol 127 (1-2) ◽  
pp. 39-43 ◽  
Author(s):  
Shohei Fukumoto ◽  
Masaaki Kitano ◽  
Masato Takeuchi ◽  
Masaya Matsuoka ◽  
Masakazu Anpo
Keyword(s):  
Thin Films ◽  
Hydrogen Production ◽  
Aqueous Solutions ◽  
Visible Light ◽  
Model Compounds ◽  
Tio2 Thin Films ◽  
Photocatalytic Hydrogen Production

Photocatalytic Hydrogen Production from Gas-phase Methanol and Water with Nanocrystalline TiO2 Thin Films in High Vacuum

2007 ◽  
Vol 1056 ◽  
Author(s):  
Kei Noda ◽  
Masashi Hattori ◽  
Kouichi Amari ◽  
Kei Kobayashi ◽  
Toshihisa Horiuchi ◽  
...  
Keyword(s):  
Thin Films ◽  
Hydrogen Production ◽  
Gas Phase ◽  
High Speed ◽  
Hydrogen Generation ◽  
High Vacuum ◽  
Generation Process ◽  
Tio2 Thin Films ◽  
Nanocrystalline Tio2 ◽  
Photocatalytic Hydrogen Production

ABSTRACTPhotocatalytic hydrogen production with gas-phase reactions in high vacuum was examined for nanocrystalline anatase-type titanium dioxide (TiO2) thin films. The hydrogen generation process on platinized TiO2 specimens was investigated using a quadrupole mass spectrometer at a real-time scale under various partial pressures of gaseous methanol and water. As a result, hydrogen generation was successfully detected under ultraviolet ray (UV) illumination even in high vacuum (∼ 10−7 Torr). And the amount of produced H2 largely depends on the temperature of TiO2 samples, probably due to different surface states of TiO2. This study suggests the possibility of new high-speed H2 production system with gas-phase photocatalytic reactions.

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