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. 2014 Aug 29;4:5769. doi: 10.1038/srep05769

Figure 1. FESEM images of the as-prepared 3D hierarchical rutile TiO2 architectures (HRT) [denoted as HRT-1 (a), HRT-2 (b), HRT-3 (c), HRT-4 (d), HRT-5 (e), HRT-6 (f), HRT-7 (g), HRT-8 (h)], synthesized from a reaction solution containing 0.5 mL aqueous tetrabutyl titanate (TT) solution with 25 mL X M hydrochloric acid (HCl) (X = 1–8).

Figure 1