Yan Li. Synthesis and Characterization of TiO2 Doped ZnO Microtubes[J]. Chinese Journal of Chemical Physics , 2010, 23(3): 358-362. doi: 10.1088/1674-0068/23/03/358-362
Citation: Yan Li. Synthesis and Characterization of TiO2 Doped ZnO Microtubes[J]. Chinese Journal of Chemical Physics , 2010, 23(3): 358-362. doi: 10.1088/1674-0068/23/03/358-362

Synthesis and Characterization of TiO2 Doped ZnO Microtubes

doi: 10.1088/1674-0068/23/03/358-362
Funds:  This work was supported by the Tianjin Natural Sci-ence Foundation (No.09JCYBJC04200).
  • Received Date: 2010-01-29
  • The TiO2-doped ZnO microtubes have been successfully fabricated via a wet chemicalmethod, using zinc chloride and titanium sulphate as the starting materials. The as-synthesized products were characterized by X-ray diffraction, field emission scanning electronmicroscopy and room temperature photoluminescence measurement. The photocatalytic ac-tivity in degrading methyl orange was measured with a UV-Vis spectrophotometer. The pure ZnO microtubes exhibit an exact hexangular hollow structure with a diameter of about 700 nm, a length of 3 μm and a wall thickness of about 40 nm. The TiO2-doped ZnO microtubes with TiO2/ZnO ratio less than 5% have the same dimension with the pure ZnO microtubes, a smooth column shape, not a hexangular structure. The growth of ZnO may be inhibited by the more Ti4+ doped into ZnO structure to achieve a small dimension or a multiphase. The crystallinity of ZnO microtubes decreases with increasing TiO2 content, and then a multiphase containing ZnO, Ti3O5 and TiO occur when the TiO2/ZnO ratio is more than 5%. The UV emission intensity of the TiO2-doped ZnO obviously increases and then tends to decrease with TiO2/ZnO ratio increasing. The photocatalytic properties of the TiO2-doped ZnO microtubes are very effcient in degrading organic dyes of methyl orange and are well identical with its PL properties and the crystallinity.
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Synthesis and Characterization of TiO2 Doped ZnO Microtubes

doi: 10.1088/1674-0068/23/03/358-362
Funds:  This work was supported by the Tianjin Natural Sci-ence Foundation (No.09JCYBJC04200).

Abstract: The TiO2-doped ZnO microtubes have been successfully fabricated via a wet chemicalmethod, using zinc chloride and titanium sulphate as the starting materials. The as-synthesized products were characterized by X-ray diffraction, field emission scanning electronmicroscopy and room temperature photoluminescence measurement. The photocatalytic ac-tivity in degrading methyl orange was measured with a UV-Vis spectrophotometer. The pure ZnO microtubes exhibit an exact hexangular hollow structure with a diameter of about 700 nm, a length of 3 μm and a wall thickness of about 40 nm. The TiO2-doped ZnO microtubes with TiO2/ZnO ratio less than 5% have the same dimension with the pure ZnO microtubes, a smooth column shape, not a hexangular structure. The growth of ZnO may be inhibited by the more Ti4+ doped into ZnO structure to achieve a small dimension or a multiphase. The crystallinity of ZnO microtubes decreases with increasing TiO2 content, and then a multiphase containing ZnO, Ti3O5 and TiO occur when the TiO2/ZnO ratio is more than 5%. The UV emission intensity of the TiO2-doped ZnO obviously increases and then tends to decrease with TiO2/ZnO ratio increasing. The photocatalytic properties of the TiO2-doped ZnO microtubes are very effcient in degrading organic dyes of methyl orange and are well identical with its PL properties and the crystallinity.

Yan Li. Synthesis and Characterization of TiO2 Doped ZnO Microtubes[J]. Chinese Journal of Chemical Physics , 2010, 23(3): 358-362. doi: 10.1088/1674-0068/23/03/358-362
Citation: Yan Li. Synthesis and Characterization of TiO2 Doped ZnO Microtubes[J]. Chinese Journal of Chemical Physics , 2010, 23(3): 358-362. doi: 10.1088/1674-0068/23/03/358-362

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