Preparation of Mesoporous TiO2 Microspheres by Ultrasonic-Hydrothermal Process and its Photocatalysis

Yang Lin Liu; Xue Chen Duan; Shu Yun Liu; Yan Yan Liu

doi:10.4028/www.scientific.net/AMR.578.99

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 578Preparation of Mesoporous TiO2 Microspheres by...

Preparation of Mesoporous TiO₂ Microspheres by Ultrasonic-Hydrothermal Process and its Photocatalysis

Abstract:

Mesoporous TiO2 microspheres were prepared by Ultrasonic-Hydrothermal Process with tetrabutyltitanate as titanium resource and octadecylamine as template. The effects of temperature and time of hytrothermol process, and calcination temperature on the structure had been investigated via XRD,SEM,TEM.The results indicated it will be better hythrothermol treating 20h at 120°Cand then heat-treating 4h at 400°C. A high surface area of 261.7 m2/g and pore volume of 0.28cm3/g was obtained in the corresponding sample with quite narrow distribution,and centering at 4.3nm in diameter.TiO2 frame was highly crystallized, showed the characteristic of pure anataste, with average crystal size of 10.0nm. The as-prepared sample possess a morphology of microspheres with diameter about 100-300nm.The photocatalytic activity was valuated by photodegradation of methly orange. The resultes indicated 99.79% of methly orange in the solution was removed after 30min photocatalytic treatment.

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Periodical:

Advanced Materials Research (Volume 578)

Pages:

99-104

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.578.99

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Online since:

October 2012

Authors:

Yang Lin Liu, Xue Chen Duan, Shu Yun Liu, Yan Yan Liu

Keywords:

Mesoporous, Photocatalysis, Titanium Dioxide (TiO₂), Ultrasonic-Hydrothermal Process

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