Hydrothermal Preparation and Photocatalytic Activity of Different Morphology Titania

Huai Yuan Wang; Yan Ji Zhu; Zhen Yu; You Zhuang Zhu; Ying Chen

doi:10.4028/www.scientific.net/AMR.510.569

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 510Hydrothermal Preparation and Photocatalytic...

Hydrothermal Preparation and Photocatalytic Activity of Different Morphology Titania

Abstract:

TiO₂ samples with various shapes like flake, nanofiber and large grain were synthesized by template-free hydrothermal method with rutile TiO₂ or tetrabutyl titanate (Ti (OC₄H₉)₄, TBOT) as precursor. Photocatalytic degradation performances were investigated by using methyl orange (MO) as modeling pollutant. The results shown that pure mesoporous anatase TiO₂-Grain showed the highest photocatalytic activity (3.7 times higher than P25), which is due to a combinative effect of anatase phase and high specific surface areas. The bi-phase flaky TiO₂ also have higher activity than P25. While, nanofiber with TiO₂(B) phase has the lowest photocatalytic activity. The large sized TiO₂ grain can be separated and recycled easily after reaction.

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Periodical:

Advanced Materials Research (Volume 510)

Pages:

569-574

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.510.569

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Online since:

April 2012

Authors:

Huai Yuan Wang, Yan Ji Zhu, Zhen Yu, You Zhuang Zhu, Ying Chen

Keywords:

Hydrothermal Method, Large Size TiO₂ Grain, Morpholoy, Photocatalytic Activity

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