| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1545602 | Physica E: Low-dimensional Systems and Nanostructures | 2012 | 8 Pages |
TiO2 nanoflakes assembled flowerlike nanoarchitectures with diameters of 1.70–2.20 μm were synthesized by a solvothermal reaction of butyl titanate with isopropyl alcohol, HF and H2O at 180 °C for 12 h. The constituent nanoflakes have perfect rectangular shapes with the typical widths of 0.81–0.95 μm, lengths of 1.04–1.20 μm and thicknesses of 0.10–0.12 μm. The constituent nanoflakes are formed due to the selective adsorption of isopropyl alcohol on (0 1 0) surface of anatase TiO2. These anatase TiO2 nanoflakes assemble into flowerlike structures driven by the electrostatic attraction. The as-prepared TiO2 flowerlike nanoarchitectures exhibit enhanced photocatalytic ability to degrade methyl orange dye in comparison with commercial TiO2 powders. The photodegradation of methyl orange dye catalyzed by the anatase TiO2 nanoflake assembled flowerlike nanostructures fits a pseudo first-order reaction.
Graphical AbstractAnatase TiO2 nanoflake-based flowerlike nanostructures obtained via the solvothermal method exhibit enhanced photocatalytic ability to degrade methyl orange dye.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► TiO2 nanoflake based flowerlike nanostructures are synthesized for the first time. ► The nanoflakes are formed due to the selective adsorption of isopropyl alcohol. ► The nanoflakes assemble into the superstructures under the electrostatic attraction. ► The TiO2 superstructures show a good photocatalytic ability to degrade methyl orange. ► The photocatalytic activity is higher than that of commercial TiO2 powders.
