Synthesis of nano-sized anatase TiO2 with reactive {001} facets using lamellar protonated titanate as precursorElectronic supplementary information (ESI) available: Experimental details and further characterization. See DOI: 10.1039/c2cc33163b

Nano-sized anatase TiO 2 with exposed {001} facets was synthesized from lamellar protonated titanate precursor. Owing to small size ( ca. 11 nm) and high surface area (155 m 2 g −1 ), the crystals with 26.1% {001} facets exhibited markedly superior photoactivity to reference ca. 76 nm anatase TiO 2 nanosheets with 88.4% {001} facets. Using lamellar protonated titanate as precursor, nano-sized anatase TiO 2 with high surface area and exposed {001} facets was synthesized and exhibited superior photoactivity to products directly from tetrabutyl titanate precursor.