Citation: YAN Shi, HUANG Qin-Dong, LIN Jing-Dong, YUAN You-Zhu, LIAO Dai-Wei. Photocatalytic Activity of Cobalt Doped Titania for H₂ Evolution[J]. Acta Physico-Chimica Sinica, ;2011, 27(10): 2406-2410. doi: 10.3866/PKU.WHXB20110929 shu

Photocatalytic Activity of Cobalt Doped Titania for H₂ Evolution

YAN Shi ¹ ,
HUANG Qin-Dong ¹ ,
LIN Jing-Dong ^1,2, ,
YUAN You-Zhu ^1,2,3 ,
LIAO Dai-Wei ^1,2,3

1.
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

Received Date: 1 April 2011
Available Online: 26 July 2011
Fund Project: 国家重点基础研究发展规划项目(973)(2011CBA00508)资助 (973)(2011CBA00508)

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.
- Cobalt-doped,
- Titania,
- Polymerized complex method,
- Photocatalysis,
- H₂ evolution
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Photocatalytic Activity of Cobalt Doped Titania for H₂ Evolution