Effect of Calcinations Temperature on the Structural and Photocatalytic Activity of TiO2 Powders Prepared by Sol-Gel Method

Weerachai Sangchay

doi:10.4028/www.scientific.net/AMR.626.329

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 626Effect of Calcinations Temperature on the...

Effect of Calcinations Temperature on the Structural and Photocatalytic Activity of TiO₂ Powders Prepared by Sol-Gel Method

Abstract:

TiO₂ powders were prepared by sol-gel method. The prepared powders were synthesized at the temperature of 200 °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. 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 calcined at 700 °C were found to give the highest photocatalytic efficiency (81.7%) under UV irradiation.

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Periodical:

Advanced Materials Research (Volume 626)

Pages:

329-333

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.626.329

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Online since:

December 2012

Authors:

Weerachai Sangchay

Keywords:

Calcinations Temperature, Photocatalytic, Powder, Sol-Gel Method, Structural, TiO₂

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