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HomeMaterials Science ForumMaterials Science Forum Vol. 757Enhancement in Photocatalytic Activity of...

Enhancement in Photocatalytic Activity of Nano-TiO₂ Photocatalyst by Carbon Doping

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Abstract:

The carbon doped TiO₂ nanoparticles with different amount of carbon content were prepared using starch as the carbon source. The physical properties of the as-prepared catalyst were determined using X-ray diffraction, transmission electron microscopy and UV-vis diffuse reflectance spectroscopy. The results showed that carbon was successfully doped into TiO₂ and the optical response of TiO₂ was shifted from UV to the visible light region. The photocatalytic activity of these catalysts was evaluated by the degradation of phenol under UV and visible light irradiation. C-doped TiO₂ nanocomposites showed better photocatalytic activity than the undoped TiO₂ nanoparticles. The degradation rate of phenol on C-doped TiO₂ was higher than those of pure TiO₂under visible light. As the results, C-doped TiO₂ possessed better absorption ability of visible light. The kinetic studies revealed that the degradation of phenol follows pseudo first order reaction relationship.

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Periodical:

Materials Science Forum (Volume 757)

Pages:

271-284

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.757.271

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Online since:

May 2013

Authors:

Amrit Pal Toor, Neha Yadav, R.K. Wanchoo

Keywords:

Carbon Doped Nano TiO₂, Degradation, Doping, Photocatalysis, Wastewater

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