Abstract
AbstractA novel and efficient methodology for obtaining highly active photocatalyst of bi‐phase TiO2 with small particle size and high specific surface area was developed by solvent evaporation‐induced crystallization (SEIC) method at low temperature. The prepared TiO2 powder was characterized with X‐ray diffraction (XRD), transmission electron microscopy (TEM) and BET surface areas. The photocatalytic activity was evaluated by the photocatalytic oxidation of acetone in air. The results showed that the photocatalytic activity of the TiO2 powder prepared by this method approached that of Degussa P25. This may be attributed to the fact that the prepared TIO2 powder had larger specific surface areas (265 nr2. g−1) and smaller crystallite size (about 5 nm), but relatively low crystallinity, as compared with Degussa P25.
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