Hierarchical nanostructured porous titania films supported on glass substrate with enhanced photocatalytic efficiency

作者：Sangkharat Nitipong; Chalermkiti Tanapol; Lorkit Pornsit; Ksapabutr Bussarin^*; Panapoy Manop^*

来源：Optoelectronics and Advanced Materials-Rapid Communications, 2016, 10(3-4): 217-221.

• Titanium dioxide
• Electrostatic spray deposition
• Film
• Photocatalyst

Hierarchical nanostructured porous titania (TiO2) films supported on glass substrates were directly prepared by electrostatic spray deposition process. This synthesis method is versatile for tailoring TiO2 nanostructured design from three-dimensional (3D) rods to drops using flat-shaped tip (0 degrees) and wedge-shaped tip (15 degrees), respectively. The photocatalytic efficiency of the catalysts was evaluated by degradation of methylene blue (MB) as a model molecule under ultraviolet irradiation. The resulting films exhibited very promising photocatalytic properties for MB degradation, even superior to P25 film obtained from commercial Degussa powder and showed the catalyst stability and reusability, even after five reuse cycles. The reported strategy also provides a simple technique to fabricate 3D nanostructured films.

• 出版日期2016-4