Additional file 1.

Supporting information. Particle size distributions for the sample shown in Figures 2a, 3a, 4a, and 4b (Figure S1) and the size of the TiO2 nanorods formed by hydrothermal treatment (Figure S2).

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Chen et al. Nanoscale Research Letters 2012 7:297   doi:10.1186/1556-276X-7-297