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Acta Phys. Chim. Sin.  2011, Vol. 27 Issue (10): 2406-2410    DOI: 10.3866/PKU.WHXB20110929
CATALYSIS AND SURFACE SCIENCE     
Photocatalytic Activity of Cobalt Doped Titania for H2 Evolution
YAN Shi1, HUANG Qin-Dong1, LIN Jing-Dong1,2, YUAN You-Zhu1,2,3, LIAO Dai-Wei1,2,3
1. Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, P. R. China
2. National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, Xiamen 361005, Fujian Province, P. R. China
3. State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen 361005, Fujian Province, P. R. China
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Abstract  Cobalt-doped titania (Co/TiO2) photocatalysts were synthesized by the polymerized complex method (PCM). The materials were characterized by thermogravimetric analysis-differential scanning calorimetry (TGA-DSC), Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), nitrogen adsorption-desorption, ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) and X-ray photoelectron spectroscopy (XPS). The photocatalytic activity of the samples was evaluated by hydrogen evolution. The results show that anatase type titania exists in the materials and cobalt is evenly dispersed. The activity of the cobalt doped titania was found to be superior to that of pure titania. The maximum activity obtained at 0.3% Co/Ti molar ratio was nearly 6 times as high as that of pure titania. The amount of hydrogen produced was up to 2499 μmol. The doping mechanism of cobalt is discussed.

Key wordsCobalt-doped      Titania      Polymerized complex method      Photocatalysis      H2 evolution     
Received: 01 April 2011      Published: 26 July 2011
MSC2000:  O643  
  O644  
Fund:  

The project was supported by the National Key Basic Research Program of China (973) (2011CBA00508).

Corresponding Authors: LIN Jing-Dong     E-mail: jdlin@xmu.edu.cn
Cite this article:

YAN Shi, HUANG Qin-Dong, LIN Jing-Dong, YUAN You-Zhu, LIAO Dai-Wei. Photocatalytic Activity of Cobalt Doped Titania for H2 Evolution. Acta Phys. Chim. Sin., 2011, 27(10): 2406-2410.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20110929     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2011/V27/I10/2406

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