Efficient Photocatalytic Degradation of Bisphenol a over Urushiol Modified Titanium Dioxide under Visible Light Irradiation

Xu Zhang; Nan Sheng Deng

doi:10.4028/www.scientific.net/MSF.694.815

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HomeMaterials Science ForumMaterials Science Forum Vol. 694Efficient Photocatalytic Degradation of Bisphenol...

Efficient Photocatalytic Degradation of Bisphenol a over Urushiol Modified Titanium Dioxide under Visible Light Irradiation

Abstract:

A novel urushiol grafted Degussa P25 (urushiol/P25) hybrid nano-material was synthesized, and its structure was characterized. The urushiol/P25 hybrid nanomaterial showed high photoactivity under visible light irradiation (λ  420 nm). Bisphenol A (BPA) can easily approach to P25 surface through the hydrophobic channel between alkyl groups in urushiol. The reaction rate constant of BPA degradation increased by 4.9 times by using 0.5% urushiol/P25 as catalyst than by using bare P25. Radical quenching experiments proved that the superoxide radical anion (O2•−) mediated oxidation pathways were dominant for BPA degradation.

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Materials Science Forum (Volume 694)

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815-819

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https://doi.org/10.4028/www.scientific.net/MSF.694.815

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July 2011

Authors:

Xu Zhang, Nan Sheng Deng

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Bisphenol A (BPA), Superoxide Radical, TiO₂, Urushiol

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