Proceedings of September Meeting 2016 (NFM16)
Publication date: 14th June 2016
Photocatalytic hydrogen evolution is possible employing a hybrid system combining a solid-state visible light absorber, such as In2S3 semiconductor, with Desulfovibrio vulgaris [NiFeSe] Hydrogenase. The energy of the conduction band of In2S3 is high enough to supply the hydrogenase with photo-exited electrons for H2 production.[1] The photocatalytic activity of soluble form of the Hydrogenase incubated previously with In2S3 particles was measured by membrane-inlet mass spectrometry connected to an anaerobic vessel with no gas phase,[2] under visible light irradiation. This method allows to measure in situ the rate of H2 production in the aqueous phase, giving us real time information of the interface processes occurring between the hydrogenase and the semiconductor.[3]
1 Y. Xu, M. A. A. Schoonen, American Mineralogist, 2000, Vol. 85, page 543.
2 Y. Jouanneau, B.C. Kelley, Y. Berlier, P.A. Lespinat and P.M. Vignais. J. Bacteriol. 1980, Vol.143, page 628.
3 C. Tapia, S. Zacarias, I. A. C. Pereira, J. C. Conesa, M. Pita, A. L De Lacey, Submitted, 2016.
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