3. Results and discussion
In the present work, 10 wt% NiOx/TiO2 catalysts calcined at different temperatures were used for the photocatalytic H2 production from aqueous glycerol solution. The 10 wt% NiO loading approximately corresponds to monolayer coverage of NiO species over the surface of TiO2 used that has a BET surface area of 50 m2 g−1. The state of NiOx dispersion (namely, the state of NiOx–TiO2 junction/contact) was varied by changing the calcination temperature.