Figure 3. Plot of the amount of iron(II) ions against the time in seconds

From

Experimental Approach for Efficiency Determination of Photocatalytic Hydrogen Evolution

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

World Journal of Chemical Education. 2021, 9(4), 185-189 doi:10.12691/wjce-9-4-11