| 光谱学与光谱分析 |
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| Spectral Research on the Effect Various Metal Ions on the of Photocatalytic Degradation Properties of TiO2 Nanocrystal |
| CHEN You-cun1, ZHU Jing-miao1, ZHANG Yuan-guang1, ZHOU Geng-tao2 |
1. Department of Chemistry, Anqing Teachers Colledge, Anqing 246011, China
2. Department of Chemistry, University of Science and Technology of China, Hefei 230026, China |
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Abstract TiO2 nanocrystalline was prepared by a emulsion method in the mixed solvent of cyclohexane and acetic anhydride using titanyl organic compound as the precursor. The prepared product was characterized by means of X-ray diffraction (XRD) and Fourier transform infrared spectrum (FTIR). The photocatalytic oxidation of methyl orange with TiO2 loaded with various metal ions was discussed. The spectral research results showed that the photocatalytic reaction of methyl orange with TiO2 loaded with Bi3+ was promoted， some metal ions caused almost no promotion of TiO2 oxidation of methyl orange, and Ni2+ and Fe3+ ions caused a little promotion. The best mass proportion of Bi3+ and TiO2 was defined as 1∶8, which has a good photocatalytic activity. The photocatalytic degradation reaction of methyl orange was affected by the concentration of TiO2 nanocrystal, and when the mass proportion of Bi3+ and TiO2 is 1∶8, the best photocatalytic activity concentration of TiO2 is about 1.6 g·L-1.
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Received: 2003-12-26
Accepted: 2004-05-11
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Corresponding Authors:
CHEN You-cun
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| Cite this article: |
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CHEN You-cun,ZHU Jing-miao,ZHANG Yuan-guang, et al. Spectral Research on the Effect Various Metal Ions on the of Photocatalytic Degradation Properties of TiO2 Nanocrystal [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(09): 1475-1477.
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https://www.gpxygpfx.com/EN/Y2005/V25/I09/1475 |
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