Journal
ENERGY SOURCES
Volume 27, Issue 12, Pages 1151-1165Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00908310490479574
Keywords
clean fuels; hydrogen; lasers; oxygen; photocatalysis; water splitting; WO3
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The photocatalytic activity of WO3 semiconductor powder for water splitting into H-2 and O-2 was studied. Instead of conventional broad spectrum light sources like lamps, monochromatic laser radiations in the UV region (lambda = 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 H-2 and O-2 yield in the presence of various metal ions was also investigated. The effect of the hole- capture agent on H-2 and O-2 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.
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