Synthesis and photocatalytic property of Ce-doped SnO2 |
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Authors: | Shide WU Chao LI Wei WEI Huanxin WANG Youqi ZHU Yanliang SONG |
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Affiliation: | Henan Province Key Laboratory of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, China |
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Abstract: | Pure SnO2 and Ce-doped (1%, 4%, 7%, 10% in mass ratio) SnO2 powders were prepared by a simple sol-gel method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) specific surface area analyzers. Results showed that the 7% Ce-doped sample has a particle size of 0.1-0.3 μm with a narrow particle size distribution while the pure SnO2 was consisted of large agglomerated particles with a diameter up to several micrometers. When used as the catalyst to degrade methyl orange (MO), the 7% Ce-doped sample showed best photocatalytic property. These properties can be attributed to the large surface area and small particle size of the 7% Ce-doped sample. |
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