Figure 16. Left: Reduction of graphene oxide to graphene by the addition of an aqueous sodium dithionite solution. The graphene layers form van der Waals interactions and a graphite-like structure is created. Right: By shaking, the non-polar graphene can be transferred into a non-polar phase

From

Rapid Synthesis of Yellow Graphite Oxide - One-Step Electrochemical Oxidation of Graphite in Organic Solvents

Andreas Schedy, Beau Matyas, Marco Oetken

World Journal of Chemical Education. 2019, 7(2), 109-119 doi:10.12691/wjce-7-2-11