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Photosensitized reduction of water to hydrogen using novel Maya blue-like organic–inorganic hybrid material
- Source :
-
Journal of Colloid & Interface Science . May2009, Vol. 333 Issue 1, p285-293. 9p. - Publication Year :
- 2009
-
Abstract
- Abstract: On the basis of the understanding that membranes play an important role in the separation of the intermediate photoproducts in the photosynthetic process, a novel efficient hydrogen evolution system was constructed with Maya blue-like organic–inorganic hybrid material as a photocatalyst, in which palygorskite acts as matrix and Eosin Y as a photosensitizer. Under visible light irradiation (), the highest rate of hydrogen evolution and apparent quantum yield are about 3247.2 μmol h−1 (g Eosin Y)−1 and 12.5%, respectively. Negatively charged palygorskite particles could control the photosensitized electron-transfer reaction by means of electrostatic interaction. Based on the activities of hydrogen generation and the experimental measurements of UV–vis absorbance and fluorescence, a probable mechanism for photosensitized hydrogen evolution was postulated. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00219797
- Volume :
- 333
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Colloid & Interface Science
- Publication Type :
- Academic Journal
- Accession number :
- 37149442
- Full Text :
- https://doi.org/10.1016/j.jcis.2009.01.013