Experimental Approach for Efficiency Determination of Photocatalytic Hydrogen Evolution

Philipp Lanfermann¹, Christoph Weidmann¹, Janina Dege¹, Steven Celik², Alexander Tasch¹, Mona Christin Maaß¹ and Thomas Waitz^1,

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

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

Cite this paper

Philipp Lanfermann, Christoph Weidmann, Janina Dege, Steven Celik, Alexander Tasch, Mona Christin Maaß and 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

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.

Keywords

actinometry, nanoparticles, hydrogen evolution, photocatalysis

Copyright

This work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

References

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