Characteristics of water adsorbed on TiO2 photocatalytic systems with increasing temperature as studied by solid-state (super 1)H NMR spectroscopy

The time profiles of the intensities, line widths and chemical shifts if (super 1)H NMR signals of adsorbed water at 358k were investigated for six different TiO2 photocatalysts with different properties solid-state (super 1)H NMR spectroscopy. The apparent single water peak was found to comprise the signals with different line widths and chemical shifts which corresponded to those of water molecules with different structures and mobility.