Alternative adsorption–desorption of C3H6 on nanotube-like silver titanate

A novel material—nanotube-like silver titanate (NST) was prepared from nanotube H2Ti2O4(OH)2 and characterized by means of TEM, XRD, XPS and DRS. Two kinds of alternative adsorption–desorption of C3H6 on NST were observed under visible light irradiation and in the dark. The deconvoluted alternative adsorption–desorption curve of C3H6 indicated that there exist two kinds of active sites on the surface of NST with quite different rates of adsorption and desorption. This phenomenon was discussed and explained.