New TiO₂/DSAT Immobilization System for Photodegradation of Anionic and Cationic Dyes

Figure 4

SEM images surface morphology of immobilized TiO₂/DSAT (a) for 1st cycle of photodegradation process of RR4 and (b) after 30 cycles under photodegradation process of RR4. Cross section images of (c) immobilized TiO₂/DSAT under heating process; (d) magnification image for immobilized TiO₂/DSAT under heating process; (e) immobilized TiO₂/DSAT without heating process; and (f) magnification image for immobilized TiO₂/DSAT without heating process.