Mechanism and the Influences of Different Substrates on Photocatalytic Property of TiO2 Membrane

Yu Ming Tian; Yuan Yuan Zhao; Chang Wei Gong; Yue Sheng Chai

doi:10.4028/www.scientific.net/AMR.391-392.1200

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 391-392Mechanism and the Influences of Different...

Mechanism and the Influences of Different Substrates on Photocatalytic Property of TiO₂ Membrane

Abstract:

For the purpose of obtaining the high-efficiency TiO₂ photocatalyst carrier, the mechanism and influences of different substrates on photocatalytic activities of TiO₂ membranes were investigated. Three kinds of membranes TiO₂/Al₂O₃/Al, TiO₂/Al and TiO₂/glass were prepared using the dip-coating method. Methyl orange solution with pH=3 and initial concentration 20 mg/L was degraded under the UV irradiated for 2 h with three membranes. The discoloring ratios are 74.7%, 59.1%, 52.6% respectively after 1h, and become above 96% after 2 h. It indicates that Al and Al₂O₃/Al as carriers are able to enhance photocatalytic activities to some extent, while glass just as carrier that have no influence.

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Periodical:

Advanced Materials Research (Volumes 391-392)

Pages:

1200-1204

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.391-392.1200

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Online since:

December 2011

Authors:

Yu Ming Tian, Yuan Yuan Zhao, Chang Wei Gong, Yue Sheng Chai

Keywords:

Photocatalytic Activity, Substrate, TiO₂ Immobilization, Titania Membrane

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