Preparation of N-TiO₂ Using a Microwave/Sol-Gel Method and Its Photocatalytic Activity for Bisphenol A under Visible-Light and Sunlight Irradiation

Figure 12

Photocatalytic efficiency of cyclic tests for (a) P and (b) 0.1 NT (BPA = 10 mg/L, pH = 6, 410 nm visible light, and photocatalyst = 6.7 g/L).

(a)

(b)