Fig. 3From: Well-Aligned TiO2 Nanotube Arrays with Ag Nanoparticles for Highly Efficient Detection of Fe3+ IonSEM Images of Ag Nanoparticle-loaded TiO2 Nanotube Arrays with sputtering durations of 30 s, 35 s, 40 s, and 45 s corresponding with (a) - (d), respectivelyBack to article page