Investigation of Fe-Doped Graphitic Carbon Nitride-Silver Tungstate as a Ternary Visible Light Active Photocatalyst

Figure 9

Response surface methodology showing the interaction of various reaction parameters. Interaction between (a) catalyst dose and pH, (b) oxidant dose and pH, (c) time and pH, (d) catalyst dose and oxidant dose, and (e) time and catalyst dosage.

(a)

(b)

(c)

(d)

(e)