Facile Synthesis of Thermally Stable Mesoporous Titania Spheres with Excellent Photocatalytic Activity

Facile Synthesis of Thermally Stable Mesoporous Titania Spheres with Excellent Photocatalytic Activity

Thermally stable mesoporous TiO2 spheres were successfully prepared via in situ hydrolysis of a titanium glycolate precursor. The mesoporous nature was retained even with calcination up to 500 °C under static air conditions. Mesoporous TiO2 calcined at 500 °C showed the maximum photocatalytic activi...

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Veröffentlicht in:Chemistry letters 2015, Vol.44 (1), p.61-63
Hauptverfasser: Bin Park, Su, Sivaranjani, Kumarsrinivasan, Jung Na, Hyun, Li, Zhenghua, Choi, Yeong-Jin, Yang, Young-Jun, Man Kim, Ji
Format: Artikel
Sprache:eng
Schlagworte:
Diffusion
Hydrolysis
Nanocrystals
Photocatalysis
Precursors
Surface area
Thermal stability
Titanium dioxide
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Zusammenfassung:Thermally stable mesoporous TiO2 spheres were successfully prepared via in situ hydrolysis of a titanium glycolate precursor. The mesoporous nature was retained even with calcination up to 500 °C under static air conditions. Mesoporous TiO2 calcined at 500 °C showed the maximum photocatalytic activity. This is mainly attributed to the better utilization of charge carriers due to the low diffusional length along with high surface area and well-defined nanocrystallinity.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.140877