Porous TiO2-Al2O3 Photocatalyst: The Effects of Calcination Time

Wen Jie Zhang; Hong Liang Xin

doi:10.4028/www.scientific.net/AMR.496.165

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 496Porous TiO2-Al2O3 Photocatalyst: The Effects of...

Porous TiO₂-Al₂O₃ Photocatalyst: The Effects of Calcination Time

Abstract:

Porous TiO2-Al2O3 composite materials were prepared through sol-gel method after calcination at 500 oC for different time. FT-IR spectra of porous TiO2-Al2O3 composite materials revealed that the samples are composed of Al2O3 and TiO2. The sample calcinated for 2.5 h had the maximum specific area of 128.9 m2•g-1. High pore volume and average pore size were possessed by the samples calcinated for 1 h and 3 h. While being calcinated at 500 oC, photocatalytic activities of the materials increased at first and then dropped down with the increasing calcination time. The sample calcinated for 3 h showed the maximum activity of 35%.

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Periodical:

Advanced Materials Research (Volume 496)

Pages:

165-168

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.496.165

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Online since:

March 2012

Authors:

Wen Jie Zhang, Hong Liang Xin

Keywords:

Al₂O₃, Composite, Photocatalysis, TiO₂

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