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Citation: LUO Sha, LIU Shouxin. Preparation and Characterization of Gadolinium-doped TiO₂/Activated Carbon Fibre Composite[J]. Chinese Journal of Applied Chemistry, ;2011, 28(1): 66-71. doi: 10.3724/SP.J.1095.2011.00078 shu

Preparation and Characterization of Gadolinium-doped TiO₂/Activated Carbon Fibre Composite

LUO Sha ,
LIU Shouxin ^,

1.
College of Material Science and Engineering, Northeast Forestry University, Harbin 150040

Corresponding author: LIU Shouxin,
Received Date: 1 February 2010
Available Online: 15 June 2010
Fund Project: 国家自然科学基金(30771692) (30771692)黑龙江省杰出青年基金(JC200801)资助项目 (JC200801)

Gadolinium-doped TiO₂/activated carbon fibre composite(TG/ACF) was prepared from TiCl₄ and Gd(NO₃)₃·6H₂O by acid-catalyzed hydrolysis method, then it was loaded on active carbon fiber (ACF) surface by impregnation. The photocatalytic activity was evaluated by degradation of gaseous benzene. XRD, FTIR and GC-MS were used to characterize the obtained composite. The results showed that Gd-doping could inhibit the growth of TiO₂ crystallite. The photocatalytic activity of gadolinium-doped TiO₂/ACF was affected by the added amount of Gd and dip-coating times. When the mass fraction of doped-gadolinium was 0.48% and dip-coating for 2 times, the composite exhibited the highest photocatalytic activity for benzene removal. No quinine compound was detected on gadolinium-doped TiO₂/ACF composite surface after photocatalytic oxidation of benzene. The doped-Gd could slow down the deactivation of the catalyst, and the catalyst remained high activity after 100 min of usage.
- titanium dioxide,
- activated carbon fibre,
- gadolinium-doped,
- photocatalysis,
- adsorption
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Preparation and Characterization of Gadolinium-doped TiO₂/Activated Carbon Fibre Composite