The present paper reports a simple route to fabricate high surface area anatase TiO2 mesoflowers from electrospun TiO2-SiO 2 composite nanostructures. Electrospun fiber- and rice-shaped TiO2-SiO2 composite nanostructures upon treatment with concentrated alkali (NaOH) under hydrothermal conditions (180°C) result in chemical transformation of the TiO2 and in situ etching of SiO 2 to give sodium titanates. The sodium titanate upon acidification followed by a low temperature sintering (180°C) results in 3D TiO 2 mesoflowers. The material is found to be superior to the commercial P-25 in photocatalysis. © 2014 The Royal Society of Chemistry.
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T. A. Arun, Chacko, D. K., Madhavan, A. A., Deepak, T. G., Anjusree, G. S., Sara, T., Ramakrishna, S., Nair, S. V., and A. Nair, S., “Flower-shaped anatase TiO2 mesostructures with excellent photocatalytic properties”, RSC Advances, vol. 4, pp. 1421-1424, 2014.