Figure 4.

TEM images of as-synthesized bare TiO2NPs by non-synchronous feeding with different starting Li2O concentrations. (a) 25 mM (inset: the hydrothermally treated sample ‘a’ in a mixture of EtOH/H2O = 1 at 150 °C for 24 h) and (b) 50 mM.

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