Fig. 3From: Electrokinetic Properties of TiO2 Nanotubular SurfacespH dependence of ζ for pristine Ti foil and TiO2 NTs with 15, 50, and 100 nm in diameter in 1.5 mM NaCl (in colours) and 1 mM KCl (between points at pH = 7.4, adapted from [16])Back to article page