Figure 4.

XRD diffractograms of rutile and anatase TiO2 and hollow TiO2 particles through different processes. Curve 1, sample D (simple THF dissolution); curve 2, sample HD (preheating plus THF dissolution); curve 3, sample HC (preheating plus calcination).

Wang et al. Nanoscale Research Letters 2012 7:646   doi:10.1186/1556-276X-7-646
Download authors' original image