Feng Li, Zheng-ping Fu, Ya-lin Lu. Pt/TiO2 Nanosheets Array Dominated by {001} Facets with Enhanced Photocatalytic Activity[J]. Chinese Journal of Chemical Physics , 2014, 27(5): 530-534. doi: 10.1063/1674-0068/27/05/530-534
Citation: Feng Li, Zheng-ping Fu, Ya-lin Lu. Pt/TiO2 Nanosheets Array Dominated by {001} Facets with Enhanced Photocatalytic Activity[J]. Chinese Journal of Chemical Physics , 2014, 27(5): 530-534. doi: 10.1063/1674-0068/27/05/530-534

Pt/TiO2 Nanosheets Array Dominated by {001} Facets with Enhanced Photocatalytic Activity

doi: 10.1063/1674-0068/27/05/530-534
Funds:  This work is supported by the National Basic Re-search Program of China (No.2012CB9222000).
  • Received Date: 2014-05-11
  • {001} facets dominated single crystalline anatase TiO2 nanosheet array (TNSA) was synthe-sized through an optimized organic solvothermal route on uorine-doped tin oxide substrate. The field emission scanning electron microscopy images and X-ray diffraction patterns re-vealed that the {001} synthesized facets dominated TNSA exhibited much higher orientation than that synthesized by hydrothermal route. The TNSAs were loaded with Pt nanoparti-cles in uniformly size by using a photodecomposition method, which were further con rmed by high resolution transmission electron microscopy (HRTEM). The HRTEM images also revealed that Pt nanoparticles preferred to deposit on {001} facets. With loading of Pt nanoparticles, the optical absorbance was significantly enhanced, while the photolumines-cence (PL) was inhibited. The photocatalytic activity of TNSA was signi cantly improved by Pt loading and reached the maximum with optimal amount of Pt loading. The optimal amount of Pt on {001} facets is far less than that on TiO2 nanoparticles, which may be attributed to the specific atom structure of reactive {001} facets.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Pt/TiO2 Nanosheets Array Dominated by {001} Facets with Enhanced Photocatalytic Activity

doi: 10.1063/1674-0068/27/05/530-534
Funds:  This work is supported by the National Basic Re-search Program of China (No.2012CB9222000).

Abstract: {001} facets dominated single crystalline anatase TiO2 nanosheet array (TNSA) was synthe-sized through an optimized organic solvothermal route on uorine-doped tin oxide substrate. The field emission scanning electron microscopy images and X-ray diffraction patterns re-vealed that the {001} synthesized facets dominated TNSA exhibited much higher orientation than that synthesized by hydrothermal route. The TNSAs were loaded with Pt nanoparti-cles in uniformly size by using a photodecomposition method, which were further con rmed by high resolution transmission electron microscopy (HRTEM). The HRTEM images also revealed that Pt nanoparticles preferred to deposit on {001} facets. With loading of Pt nanoparticles, the optical absorbance was significantly enhanced, while the photolumines-cence (PL) was inhibited. The photocatalytic activity of TNSA was signi cantly improved by Pt loading and reached the maximum with optimal amount of Pt loading. The optimal amount of Pt on {001} facets is far less than that on TiO2 nanoparticles, which may be attributed to the specific atom structure of reactive {001} facets.

Feng Li, Zheng-ping Fu, Ya-lin Lu. Pt/TiO2 Nanosheets Array Dominated by {001} Facets with Enhanced Photocatalytic Activity[J]. Chinese Journal of Chemical Physics , 2014, 27(5): 530-534. doi: 10.1063/1674-0068/27/05/530-534
Citation: Feng Li, Zheng-ping Fu, Ya-lin Lu. Pt/TiO2 Nanosheets Array Dominated by {001} Facets with Enhanced Photocatalytic Activity[J]. Chinese Journal of Chemical Physics , 2014, 27(5): 530-534. doi: 10.1063/1674-0068/27/05/530-534

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