Fig. 7
From: Photocatalytic degradation of high ammonia concentration wastewater by TiO2

SEM images of (a) 2 (b) 4 (c) 6 and (d) 10 layers of TiO2 thin film
From: Photocatalytic degradation of high ammonia concentration wastewater by TiO2
SEM images of (a) 2 (b) 4 (c) 6 and (d) 10 layers of TiO2 thin film