| 光谱学与光谱分析 |
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| Preparation and Spectral Characteristic of TiO2/SnO2 Composite Oxides |
| LIU Cheng-lin1, ZHONG Ju-hua2, LI Yuan-guang2, ZHANG Zhao-kui2 |
1. Physics Department, Yancheng Teachers' College, Yancheng 224002, China
2. Physics Department, East China University of Science and Technology, Shanghai 200237, China |
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Abstract To study the spectral characteristic of TiO2/SnO2, TiO2/SnO2 composite oxide with SnO2 inside kernel was fabricated by colloid chemistry method, and was studied with UV-visible absorption spectrum, X-ray diffraction and infrared spectrum. The results showed that the bandgap widths of TiO2 and TiO2/SnO2 were 4.13 and 3.86 eV, respectively. TiO2/SnO2 had a widest and strong absorption band in the ultraviolet range. There was a quantum effect. In the X-ray diffraction, the station of TiO2 (110) diffraction peak moved 1.6°, and its intensity changed. Compared with TiO2 infrared spectrum, the Ti—O stretching vibration of TiO2/SnO2 moved from 500 to 656 cm-1, and had 560 cm-1 shoulder peak. The intensity of the peaks near 1 650 and 3 420 cm-1 corresponding to water absorbing peaks increased.
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Received: 2004-04-28
Accepted: 2004-08-12
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Corresponding Authors:
LIU Cheng-lin
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| Cite this article: |
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LIU Cheng-lin,ZHONG Ju-hua,LI Yuan-guang, et al. Preparation and Spectral Characteristic of TiO2/SnO2 Composite Oxides [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(12): 1947-1949.
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https://www.gpxygpfx.com/EN/Y2005/V25/I12/1947 |
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