Table 2. Position and FWHM of the G Band as a Function of the Hi Concentration.

	HI conc. (M)	G position (cm–1)	I(D)/I(G)	FWHM (cm–1)
GO	0	1594	3.18	20.5
rGO	0.06 M	1590.6	3.35	20.6
rGO	0.12 M	1590.3	3.56	19.4
rGO	0.24 M	1589.7	3.73	18.1
rGO	0.47 M	1588.5	3.68	17.8
rGO	0.95 M	1586.6	3.61	16.0