Novel hierarchical rose bridal bouquet- and humming-top-like nanostructured TiO2 were successfully prepared by the simple process with the hydrothermal temperature as the morphology-controlling factor. The gradual transformation from layered titanate to brookite phase was well consistent with the formation mechanism of the hierarchical morphologies. The three-dimensional flower bouquets built from the bunches of roses with surrounding fern fronds displayed the best adsorptivity and completely degraded methylene blue within 60min under UV irradiation, whereas the humming-top geometry composed of anisotropically elongated spindle-like crystallites was detrimental to the dye photodegradation.
|Number of pages||7|
|Journal||Journal of Colloid and Interface Science|
|State||Published - 1 Apr 2011|