Research Article
Fluorination of Defective Titanium Dioxide with an Efficient Photocatalytic Activity
Figure 4
TEM images of F-TiO2−x prepared with different HF usage: (a) TiO2−x; (b) TiO2−x–0.15; (c) TiO2−x–0.3; (d) TiO2−x–0.6; (e) TiO2−x–0.9; (f) SEM images of TiO2−x–0.9.
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