World Journal of Chemical Education
ISSN (Print): 2375-1665 ISSN (Online): 2375-1657 Website: Editor-in-chief: Prof. V. Jagannadham
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World Journal of Chemical Education. 2021, 9(4), 185-189
DOI: 10.12691/wjce-9-4-11
Open AccessSpecial Issue

Experimental Approach for Efficiency Determination of Photocatalytic Hydrogen Evolution

Philipp Lanfermann1, Christoph Weidmann1, Janina Dege1, Steven Celik2, Alexander Tasch1, Mona Christin Maaß1 and Thomas Waitz1,

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

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

Pub. Date: November 28, 2021
(This article belongs to the Special Issue Photoprocesses in Chemical Education)

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


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.

actinometry nanoparticles hydrogen evolution photocatalysis

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