Study on the Properties of Photocatalytic Degradation of DMP on WO3/TNAs Photoelectrodes

Yan Shi; Yong Ping Liu; Yan Jun Xin

doi:10.4028/www.scientific.net/AMR.850-851.12

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 850-851Study on the Properties of Photocatalytic...

Study on the Properties of Photocatalytic Degradation of DMP on WO₃/TNAs Photoelectrodes

Abstract:

In this study, WO₃/TiO₂ nanotube array photoelectrodes were fabricated by anodic oxidation and electro-deposition method. The effects of WO₃, H₂O₂, oxygen, and pH value were investigated in the degradation of Dimethyl phthalate (DMP). Results show that the photocatalytic property of the photoelectrode was improved by the modification of WO₃. The degradation rate of DMP was increased by 9.3% after 120min irradiation. H₂O₂ could significantly promote the degradation of DMP. The degradation rate of DMP was increased by 27.9% and arrived 97.5% after 120 min irradiation. A certain amount of O₂ added to the solution had positive effect on the degradation of DMP. While excessive O₂ would undermine the degradation. The degradation rate of DMP was improved in both acidic condition and alkaline condition. It was separately increased by 38.4% and 40.2% at the pH value of 3.0 and 7.0, compared with that of pH = 7.

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Periodical:

Advanced Materials Research (Volumes 850-851)

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12-15

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.850-851.12

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Online since:

December 2013

Authors:

Yan Shi, Yong Ping Liu, Yan Jun Xin*

Keywords:

Anode Oxidation, Dimethyl Phthalate, Photocatalytic Degradation, TiO₂ Nanotube Array Photoelectrode

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