Preparation of C Doped TiO2 Photocatalysts and their Photocatalytic Reduction of Carbon Dioxide

Li Mei Xue; Feng Hua Zhang; Hui Juan Fan; Xue Feng Bai

doi:10.4028/www.scientific.net/AMR.183-185.1842

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 183-185Preparation of C Doped TiO2 Photocatalysts and...

Preparation of C Doped TiO₂ Photocatalysts and their Photocatalytic Reduction of Carbon Dioxide

Abstract:

TiO₂ doped with C was obtained by way of immersion and calcinations method by using citric acid (CA) as dopant material.，and characterized by using XPS、XRD, UV-Vis, FT-IR and SPS. The results of analysis and characterization showed that C substituted partial Ti atoms in the lattice of TiO₂ and formed Ti-O-C structure. The photocatalytic properties of C-TiO₂ photocatalysts had been evidently improved as a result of a noticeable shift to visible region and the enhancement of the charge separation efficiency. The doped carbon lowers the band gap and expends the absorption of visible light region. CO₂ was photocatalytically reduced to form HCOOH by the best C-TiO₂-3/1-600 nanoparticles under the irradiation of the simulated daylight lamp. Methanoic acid yield may achieve 2633.98μmol/g-Cat when irradiation time is six hours.

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Periodical:

Advanced Materials Research (Volumes 183-185)

Pages:

1842-1846

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.183-185.1842

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Online since:

January 2011

Authors:

Li Mei Xue, Feng Hua Zhang, Hui Juan Fan, Xue Feng Bai

Keywords:

Carbon Dioxide CO₂, Carbon Doping, Photocatalytic, Reduction

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