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Photosensitization of Nitrogen Doped TiO2 Nanoparticles with Na-Chlorophyllin Copper for Degradation of Methyl Orange

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Abstract:

Nitrogen doped titanium dioxide nanoparticals (N-TiO2) were prepared by the sol-hydrothermal method using urea as N sources. SEM showed the sphericity of as-prepared nanoparticals. XRD indicated that N-TiO2 was anatase crystal after thermal treatment. While Na-chlorophyllin copper (Na-chl-Cu) was used as to sensitize the N-TiO2, the photocurrent of Na-chl-Cu/N-TiO2 was 50 ìA double than that of N-TiO2 under visible light illumination. Thus, the visible light photoelectrocatalytic degradation properties of Na-chl-Cu/N-TiO2 were investigated using methyl orange (MO) as the objective pollution. When 1.8 V anodic bias potential and visible light were simultaneously applied, the highest degradation efficiency of MO over the Na-chl-Cu/N-TiO2 was obtained.

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Periodical:

Advanced Materials Research (Volumes 343-344)

Pages:

216-221

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.343-344.216

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Online since:

September 2011

Authors:

Jian Yu Gong, Chang Zhu Yang, Wen Hong Pu, Jing Dong Zhang

Keywords:

Na-Chlorophyllin Copper, Nitrogen Doped Titanium Dioxide, Visible Light Photoelectrocatalysis

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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