Controllable Synthesis of TiO2 Single Crystals with Tunable Shapes Using Ammonium-Exchanged Titanate Nanowires as Precursors
Crystal Growth & Design2010Vol. 10(5), pp. 2111–2115
Citations Over TimeTop 10% of 2010 papers
Abstract
A novel type of titanium precursor, ammonium-exchanged titanate nanowires, is used to hydrothermally synthesize nanosized TiO2 single crystals with well-defined facets. With additives of appropriate shape-capping reagents, octahedral, truncated octahedral, and spindle-like TiO2 nanocrystals have been obtained. We proposed that the transformation mechanism from ammonium-exchanged titanate nanowires to TiO2 may be a “dissolution−nucleation” process. Furthermore, the photocatalytic activities of anatase TiO2 nanocrystals with different facets exposed have been investigated.
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