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Serpone, N. and Emeline, A. V., “Semiconductor Photocatalysis – Past, Present, and Future Outlook,” J. Phys. Chem. Lett., 3(5), 673-677, March 2012.

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Article

Experimental Approach for Efficiency Determination of Photocatalytic Hydrogen Evolution

1Institute of Inorganic Chemistry, Department of Chemistry Education, Georg-August-Universität Göttingen, Germany

2Institute of Physical Chemistry, Georg-August-Universität Göttingen, Germany


World Journal of Chemical Education. 2021, Vol. 9 No. 4, 185-189
DOI: 10.12691/wjce-9-4-11
Copyright © 2021 Science and Education Publishing

Cite this paper:
Philipp Lanfermann, Christoph Weidmann, Janina Dege, Steven Celik, Alexander Tasch, Mona Christin Maaß, Thomas Waitz. Experimental Approach for Efficiency Determination of Photocatalytic Hydrogen Evolution. World Journal of Chemical Education. 2021; 9(4):185-189. doi: 10.12691/wjce-9-4-11.

Correspondence to: Thomas  Waitz, Institute of Inorganic Chemistry, Department of Chemistry Education, Georg-August-Universität Göttingen, Germany. Email: twaitz@gwdg.de

Abstract

This paper presents two related experiments aimed at determining the efficiency of photocatalytic hydrogen production on ZnS/CdS nanoparticles. In the first experiment, the method of chemical actinometry is applied to measure the number of light quanta emitted by the UV LEDs used. This utilizes the formation of an iron(II)-1,10-phenanthroline complex (ferroin), the concentration of which can be determined photometrically. In the second experiment, hydrogen is produced on prepared ZnS/CdS with the aid of these LEDs, the yield is determined by collecting the generated volume of hydrogen gas and the efficiency is calculated.

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