Photodegradation of Bisphenol A (BPA) by Carbon Doped TiO₂ under Sunlight Irradiation

Abstract:

Carbon-doped TiO₂ (C-TiO₂) was synthesized to degrade bisphenol A (BPA) under sunlight irradiation. The C-TiO₂ was a mixture of Degussa P25 and carbon fibers. Surface characteristics of prepared photocatalysts were measured by X-ray diffraction, ultraviolent (UV)-vis spectroscopy, and a BET surface area analyzer. The BPA removal rate satisfies pseudo-first-order kinetics. The percentage of anatase in TiO₂ and C-TiO₂ (C/Ti mole ratio = 0.05) was 75.5% and 76.1%, the specific surface area was 45.6 and 46.4 m²/g, band gap energy was 3.13 and 2.93 eV, and the BPA photodegradation rate was 1.48, and 2.08 hr^-1, respectively. Photocatalytic activity of TiO₂ was increased by carbon doping. The C-TiO₂ was effective in degrading BPA under sunlight irradiation.

• Periodical: Applied Mechanics and Materials (Volume 378)
• Pages: 121-124
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.378.121
• Online since: August 2013
• Authors: Chao Yin Kuo, Ya Hui Yang, Hung Min Hsiao, Ssu Chun Liao
• Keywords: BPA, Carbon, Photodegradation, Sunlight, TiO₂

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