Title of article :
Preparation and properties of ce-doped TiO2 photocatalyst
Author/Authors :
Yan، نويسنده , , Ningning and Zhu، نويسنده , , Zhongqi and Zhang، نويسنده , , Jin and Zhao، نويسنده , , Zongyan and Liu، نويسنده , , Qingju، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
5
From page :
1869
To page :
1873
Abstract :
TiO2 nanoparticles doped with different content of Ce ion were prepared by sol–gel method. The samples were characterized by XRD, XPS, TEM, UV–Vis, and PL, the photocatalytic activity was evaluated by photocatalytic degradation of methylene blue (MB) under the irradiation of fluorescent lamp. The results indicate that Ce ion is incorporated into the lattice of TiO2, which can restrain the increase of grain size, broaden the absorption region to visible light, and inhibit the recombination of the photo-generated electron and hole pairs. Moreover, the photocatalytic activity of Ce-TiO2 in MB degradation is evidently enhanced. The MB degradation rate of the sample with Ce:Ti = 0.33% (molar ratio) in 8 h is 90.03%, which is much higher than that of P25 (68.19%).
Keywords :
B. Sol–gel chemistry , A. Oxides , D. Catalytic properties
Journal title :
Materials Research Bulletin
Serial Year :
2012
Journal title :
Materials Research Bulletin
Record number :
2102055
Link To Document :
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