Enhanced Photocatalytic Degradation of Fulvic Acid Using N–Doped SnO2/TiO2 Thin Film Coated Glass Fibers under UV and Solar Light Irradiation for Drinking Water Purification

Peerawas Kongsong; Lek Sikong; Niyomwas Sutham; Vishnu Rachpech

doi:10.4028/www.scientific.net/AMM.835.359

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 835Enhanced Photocatalytic Degradation of Fulvic Acid...

Enhanced Photocatalytic Degradation of Fulvic Acid Using N–Doped SnO₂/TiO₂ Thin Film Coated Glass Fibers under UV and Solar Light Irradiation for Drinking Water Purification

Abstract:

The degradation of fulvic acid (FA) using N–doped SnO₂/TiO₂ composite thin films coated on glass fibers prepared by sol–gel and dip–coating methods was investigated. The effects of nitrogen doping on coating morphology, physical properties, and FA degradation rates were experimentally determined. Nitrogen doping has an effect on shifting the optical absorption wavelength to visible light region, narrowing the band gap energy and reducing crystallite size which lead to the enhancement of photocatalytic performance. The optimal FA degradation rates of 40N/SnO₂/TiO₂ composite thin films under UV and solar irradiation are about 2.4 and 2.0 folds higher than that of TiO₂ film, respectively due to its narrowest band gap energy (optical absorption wavelength shifting to visible light region) and small crystallite size influenced by nitrogen doped.

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Applied Mechanics and Materials (Volume 835)

Pages:

359-365

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https://doi.org/10.4028/www.scientific.net/AMM.835.359

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Online since:

May 2016

Authors:

Peerawas Kongsong, Lek Sikong*, Niyomwas Sutham, Vishnu Rachpech

Keywords:

Fulvic Acid, Glass Fibers, N-Doped SnO₂/TiO₂, Sol-Gel Method

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