Photocatalytic Activity under UV of TiO2 Powders Compared with Commercial P25

Weerachai Sangchay

doi:10.4028/www.scientific.net/AMR.626.334

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 626Photocatalytic Activity under UV of TiO2 Powders...

Photocatalytic Activity under UV of TiO₂ Powders Compared with Commercial P25

Abstract:

TiO₂ powders were prepared by sol-gel method. The prepared powders were synthesized at the temperature of 500 °C to 700 °C for 2 h with a heating rate of 10 °C/min. The characterizations of synthesized powders were characterized by XRD and SEM. Finally, photocatalytic activity was evaluated by UV-vis spectrophotometer compared with commercial P25. The results show all samples have the agglomeration. It was found that the effect of calcinations temperature on phase transformation, crystallite size, morphology and photocatalytic activity of the synthesized powders. It can be note that TiO₂ powders show highes of photocatalytic activity more than P25 and calcined at 700 °C were found to give the highest photocatalytic efficiency (82%) under UV irradiation 6 h.

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Periodical:

Advanced Materials Research (Volume 626)

Pages:

334-338

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.626.334

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Online since:

December 2012

Authors:

Weerachai Sangchay

Keywords:

Commercial P25, Photocatytic Activity, Powder, Sol-Gel Method, TiO₂

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