Photocatalytic Properties of Nitrogen-Sulfur Co-Doped TiO2 Films Coated on Glass Fiber

Benjamas Noophum; Lek Sikong; Kalayanee Kooptanond

doi:10.4028/www.scientific.net/AMR.781-784.2237

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The Preparation of Aniline Formaldehyde Condensate-Mesoporous Materials Compound and the Application in Adsorption of Zn(II) and Pb(II) in Aqueous Solution
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Removal of Cr(VI) from Water Using Attapulgite/Chitosan Composites
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UV Photodegradation and Anaerobic Digestion of MB Dye
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Adsorption of Pb(II) on Hydroxyapatite/(Poly Vinyl Alcohol) Blend Material
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Photocatalytic Properties of Nitrogen-Sulfur Co-Doped TiO₂ Films Coated on Glass Fiber

Abstract:

The photocatalytic N-S co-doped TiO₂ films coated on glass fibers were successfully prepared by sol-gel, dip-coating and calcination methods. The effect of doping concentration on crystalline size, microstructure, morphology, optical property and photocatalytic activity was investigated. The films were characterized by XRD, SEM, EDS, UV-vis DRS and FT-IR. The photocatalytic activity was evaluated by the degradation of methylene blue (MB). N-S co-doping has an effect on light adsorption wavelength shifted to visible light region which can lower the band gap energy of N-S co-doped due to the replacement of O atom in TiO₂ by N and S atoms to form Ti-O-N and Ti-O-S structures. Thiourea, a source of nitrogen and sulfur could increase viscosity of sol used for coating on glass fibers, resulting in larger particles size and more surface roughness of the doped films.TiO₂ films with 5 mol% N-S co-doped showed an excellent photocatalytic performance under fluorescent light irradiation.