Decomposition of rhodamine 6G in the presence of titania coupling coupled with carbon source as photocatalyst under visible light excitation

Heterogeneous photocatalytic degradation of N-containing R6G dye was achieved by visible light-activated carbon doped TiO 2 (C-TiO 2 ) nanoparticles, synthesized by a low-temperature wet-chemical technique using glucose as carbon source. The structural and physicochemical properties of C-TiO 2 were...

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Published in:High energy chemistry 2013-07, Vol.47 (4), p.177-181
Main Author: Zhang, Dongfang
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Language:English
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Chemistry
Chemistry and Materials Science
Photochemistry
Physical Chemistry
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description Heterogeneous photocatalytic degradation of N-containing R6G dye was achieved by visible light-activated carbon doped TiO 2 (C-TiO 2 ) nanoparticles, synthesized by a low-temperature wet-chemical technique using glucose as carbon source. The structural and physicochemical properties of C-TiO 2 were characterized by X-ray diffraction (XRD), Raman spectroscopy, UV-vis diffuse reflectance spectroscopy (UV-vis DRS) and FT-IR spectroscopy. Compared with the pure TiO 2 , the carbon modified nanomaterials exhibited enhanced absorption in the broad visible-light region together with an apparent red shift in the optical absorption edge. The resulting carbon-doped TiO 2 catalyst was employed as an effective photocatalyst for degradation of Rhodamine 6G (R6G) in aqueous solutions under visible light irradiation (λ > 420 nm). In addition, the intrinsic mechanism of visible light-induced photocatalytic oxidation of organic compounds on the carbon-doped titania was proposed and discussed.
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Photochemistry
Physical Chemistry
title Decomposition of rhodamine 6G in the presence of titania coupling coupled with carbon source as photocatalyst under visible light excitation
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