Adsorption of 17α-Ethinyl Estradiol and Bisphenol A to Graphene-Based Materials: Effects of Configuration of Adsorbates and the Presence of Cationic Surfactant

Figure 2

Scanning electron microscopy (SEM) (a–d) and transmission electron microscopy (TEM) (e–h) images of GO (a, e), RGO_1 (b, f), RGO_2 (c, g), and CG (d, h).

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)