Preparation of Sn4+ -Doped TiO2 and Investigation of its Photocatalytic Activity

Cheng Zhi Jiang; Ya Li Dou

doi:10.4028/www.scientific.net/AMR.239-242.2671

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 239-242Preparation of Sn4+ -Doped TiO2 and Investigation...

Preparation of Sn⁴⁺ -Doped TiO₂ and Investigation of its Photocatalytic Activity

Abstract:

TiO₂ and Sn⁴⁺-doped TiO₂ were prepared by sol-gel method and characterized by the techniques such as XRD, SEM and DRS. The photocatalytic degradation of methylene blue (MB) in aqueous solution was used as a probe reaction to evaluate their photocatalytic activity. The matrix distortion of TiO₂ increases after Sn⁴⁺ doping and a blue-shift of the absorption profile are clearly observed. The results show that doped Sn⁴⁺inhibits the phase transformation of TiO₂ from anatase to rutile, decreases the diameter of TiO₂ and significantly enhance the photocatalytic activity of TiO₂. The Sn⁴⁺-doped into TiO₂ exert a synergistic effect on their photocatalytic activity.

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Periodical:

Advanced Materials Research (Volumes 239-242)

Pages:

2671-2674

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.239-242.2671

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Online since:

May 2011

Authors:

Cheng Zhi Jiang, Ya Li Dou

Keywords:

Photocatalytic Activity, SnO₂, Sol-Gel Process, TiO₂

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