Water- and Oxygen-Induced Decay Kinetics of Photogenerated Electrons in TiO2and Pt/TiO2:  A Time-Resolved Infrared Absorption Study

2001 ◽  
Vol 105 (30) ◽  
pp. 7258-7262 ◽  
Author(s):  
Akira Yamakata ◽  
Taka-aki Ishibashi ◽  
Hiroshi Onishi
Keyword(s):  
Infrared Absorption ◽  
Absorption Study ◽  
Decay Kinetics ◽  
Time Resolved ◽  
Photogenerated Electrons ◽  
Kinetics Of

scholarly journals Pressure dependence of electron- and hole-consuming reactions in photocatalytic water splitting on Pt/TiO2studied by time-resolved IR absorption spectroscopy

2003 ◽  
Vol 5 (1) ◽  
pp. 7-9 ◽  
Author(s):  
Akira Yamakata ◽  
Taka-aki Ishibashi ◽  
Hiroshi Onishi
Keyword(s):  
Water Vapor ◽  
Water Splitting ◽  
Absorption Spectroscopy ◽  
The Other ◽  
Ir Absorption ◽  
Decay Kinetics ◽  
Time Resolved ◽  
Photogenerated Electrons ◽  
Reaction With Water ◽  
Kinetics Of

The decay kinetics of photogenerated electrons in the water splitting reaction on a Pt/TiO2photocatalyst was studied by time-resolved IR absorption spectroscopy. The decay of the photogenerated electrons within 2μs was decelerated when the catalyst was exposed to water vapor. The holes were consumed by the reaction with water instead of by the recombination with the electrons. On the other hand, the decay at 10–900μs was accelerated by the exposure. The electrons were consumed by the reaction with water. The rate of the hole-consuming reaction was independent of the pressure of water vapor, whereas that of the electron-consuming reaction increased with the pressure from 1 to 10 Torr. The different pressure dependences indicate different reactants involved in the oxidative and reductive reactants.

Time-resolved infrared absorption study of nine TiO2 photocatalysts

2007 ◽  
Vol 339 (1-3) ◽  
pp. 133-137 ◽  
Author(s):  
Akira Yamakata ◽  
Taka-aki Ishibashi ◽  
Hiroshi Onishi
Keyword(s):  
Infrared Absorption ◽  
Absorption Study ◽  
Time Resolved ◽  
Tio2 Photocatalysts

Time-Resolved Infrared Absorption Study of SrTiO3 Photocatalysts Codoped with Rhodium and Antimony

2013 ◽  
Vol 117 (37) ◽  
pp. 19101-19106 ◽  
Author(s):  
Koji Furuhashi ◽  
Qingxin Jia ◽  
Akihiko Kudo ◽  
Hiroshi Onishi
Keyword(s):  
Infrared Absorption ◽  
Absorption Study ◽  
Time Resolved
Sign in / Sign up

Export Citation Format

Share Document