Preparation of Sulfur-Free Exfoliated Graphite by a Two-Step Intercalation Process and Its Application for Adsorption of Oils

Table 1

The atomic ratios of GIC and EG.

Atom	Atomic ratios of a	Atomic ratios of b
C	31.88	94.87
O	57.87	5.06
P	0.59	—
Cl	8.03	0.05
K	0.61	—
Mn	1.01	0.02