For UVeVis spectroscopy, the sample

For UVeVis spectroscopy, the sample of GO was prepared by
making the solution of 10 mg GO in 10 ml distilled water. During
the oxidation of graphite, the oxygen attaches to the graphene
Fig. 8. Graphene nanosheets are embedded in TiO2 nanoparticles with 1.25 ml, 2.5 ml, 5 ml concentrations of GO followed by the anchored model [29].
Fig. 9. layers and thereby improves the polarity of the layers which, in
turn, often improves their solubility in water