Laser induced photocatalytic splitting of water over WO3 catalyst

Research output: Contribution to specialist publicationArticle

30 Scopus citations

Abstract

The photocatalytic activity of WO3 semiconductor powder for water splitting into H2 and O2 was studied. Instead of conventional broad spectrum light sources like lamps, monochromatic laser radiations in the UV region (λ, = 355 nm) were used as the light source for the study of photocatalytic water splitting over WO3. An alternate route based upon the photo-chromic properties of WO3 for the production of hydrogen was suggested. The effect of dissolved metal ions on H2 and O2 yield in the presence of various metal ions was also investigated. The effect of the hole-capture agent on H2 and O2 yield was also studied by using methanol as a hole-capture agent. The data on pH measurements during the course of reaction was found very useful in explaining the reaction mechanism in general, and metal ions action in particular. Copynght

Original languageEnglish
Pages1151-1165
Number of pages15
Volume27
No12
Specialist publicationEnergy Sources
DOIs
StatePublished - Sep 2005

Bibliographical note

Funding Information:
Received 28 October 2003; accepted 17 December 2003. The support by the Research Institute, Physics and Chemistry Department of King Fahd University of Petroleum and Minerals is gratefully acknowledged. This work is part of the Sabic Project #2002/01 funded by Saudi Basic Industries though university research committee of KFUPM. Address correspondence to M. A. Gondal, Laser Research Laboratory, Physics Department, KFUPM Box 372, Dhahran, 31261, Saudi Arabia. E-mail: [email protected]

Keywords

  • Clean fuels
  • Hydrogen
  • Lasers
  • Oxygen
  • Photocatalysis
  • WO
  • Water splitting

ASJC Scopus subject areas

  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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