Room-temperature spontaneous crystallization of porous amorphous titania into a high-surface-area anatase photocatalyst

Room-temperature spontaneous crystallization of porous amorphous titania to a high-surface-area anatase material was observed in the absence of any solvent, additive and catalyst. The as-obtained porous titania serves as an efficient photocatalyst for H-2 evolution, and its activity is more than twice that of the benchmark P25 TiO2.