The phase structures of Ti self doped
2.6. Products analysis.
3. Results and discussion
3.1. Characterization of Ti3+ self-doped anatase TiO2
Fig. 1. (a) Photographic images of Ti3+ self-doped TiO2 samples prepared with post-annealing treatment in the range of 300–700 °C for 3 h in a N2 gas flow. (b) XRD patterns of as-prepared TiO2−x and TiO2−x-T samples. (For interpretation of the references to color in the text, the reader is referred to the web version of this SKLB1002 article.)Figure optionsDownload full-size imageDownload as PowerPoint slide
Physico-chemical properties of TiO2−x samples.SampleCrystallite size (nm)SBET (m2 g−1)Optical band gap (eV)cXRDaTEMbTiO2−x8.914.3272.873.12TiO2−x-3009.114.5245.963.03TiO2−x-4009.214.5235.062.85TiO2−x-5009.514.8170.482.63TiO2−x-6009.714.8147.802.67TiO2−x-70014.214.978.982.75aEstimated by the pacemaker Scherrer equation from the broadening of anatase (1 0 1) reflection in XRD, respectively.bEstimated by TEM observation.cEstimated by Kubelka–Munk function.Full-size tableTable optionsView in workspaceDownload as CSV