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Synthesis of Vanadium-Doped TiO2 Hollow Spheres and their Visible Light Photocatalytic Activity

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Abstract:

Vanadium-doped TiO2 hollow spheres (V-THs) were successfully synthesized by hydrothermally process using carbon spheres as templates. The physicochemical properties of the catalysts were characterized by XRD, TEM, UV-Vis diffuse reflectance spectra, N2 adsorption-desorption isotherms. The photocatalytic activities of the prepared samples were evaluated for the degradation of 4-chlorophenol (4-CP) aqueous solution under visible light (λ>400 nm) irradiation, and was compared to undoped TiO2 hollow spheres (THs). It was found that vanadium ions doping sample showed the highest photocatalytic activity with an optimal doping concentration of 1.5% under visible light irradiation.

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Periodical:

Advanced Materials Research (Volumes 750-752)

Pages:

307-310

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.750-752.307

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Online since:

August 2013

Authors:

Xiao Xia Lin, De Gang Fu, Yuan Feng Ye, Ling Yun Hao

Keywords:

Hollow Spheres, Photocatalytic Activity, TiO2, Vanadium Doped, Visible Light

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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