Figure 4

(a) I–t curves for the photocurrent responses of the TiO2 nanoboxes (a), TG (b) and TFSG composites (c). (b) The Nyquist plot for the TiO2 nanoboxes (a), TG (b) and TFSG composites (c).

(a) I–t curves for the photocurrent responses of the TiO2 nanoboxes (a), TG (b) and TFSG composites (c). (b) The Nyquist plot for the TiO2 nanoboxes (a), TG (b) and TFSG composites (c).