Enhanced Adsorption and Removal of Ciprofloxacin on Regenerable Long TiO₂ Nanotube/Graphene Oxide Hydrogel Adsorbents

Figure 3

TEM images of TON (a), rGO (b), rGO-P25 (c), and rGO-TON (d).

(a)

(b)

(c)

(d)