Journal
CATALYSIS COMMUNICATIONS
Volume 11, Issue 5, Pages 336-339Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2009.10.026
Keywords
Dye sensitization; Hydrogen generation; Photo-splitting of water; TiO2; Visible light
Categories
Funding
- CSIR (India) [NWP-022]
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Visible light assisted hydrogen evolution from of water has been achieved over the surface of dye modified TiO2 semiconductor. Thionine, eosin Y, rhodamine B, methylene blue, nile blue A and safranine 0 were used for surface modification of TiO2 Semiconductor photocatalyst. Upon prolonged illumination (15 h) with visible light (using a 150 W Xenon lamp) production of H-2 in micro-mole level (6001500 mu mol) has been achieved at ambient conditions. Efficacy of the photocatalytic system towards hydrogen evolution is plausibly governed by the excited state redox properties of the dyes adsorbed onto the surface of the TiO2 photocatalyst. (C) 2009 Elsevier B.V. All rights reserved.
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