| 光谱学与光谱分析 |
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| The Study on DRS and Raman Spectroscopy of Surface Modified TiO2/SiO2 |
| SANG Li-xia1,ZHONG Shun-he2,MA Chong-fang1 |
1. Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education and Key Laboratory of Heat Transfer and Energy Conversion, Beijing Education Commission, Beijing University of Technology, Beijing 100022, China
2. College of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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Abstract TiO2/SiO2 were prepared by surface reaction of silica with an acetone solution of Ti(i-OC3H7)nCl4-n,where n=0-2. Results of XRD, Raman and UV-Vis DRS showed that two types of Ti species, small particles of anatase-type TiO2 and noncrystalline TiO<i>x species, are molecularly dispersed on the silica surface. Relative to the TiO2 bulk, a blue-shift in the bandgap adsorption edge of TiO2/SiO2 was observed due to the quantum size effects. The bandgap energy (Eg) of TiO2/SiO2 is 3.96 eV. When M(Pd, Cu, Ni) is deposited on TiO2/SiO2,the adsorption spectra extend to visible light region and the bandgap adsorption edge red shifts with respect to TiO2/SiO2. Compared with that of Pd, the deposition of Cu and Ni on TiO2/SiO2 has more effects on LMCT transition (O2-→Ti4+) of Ti atoms. And the bandgap energy of Cu-TiO2/SiO2 decreases to 3.69 eV. Similarly, the photon adsorption property for visible light can be improved relatively by the incorporation of MoO3 on TiO2/SiO2,At higher MoO3 loadings, the Mo-O-Ti coupled structure can be formed through the interaction between MoO3 and TiO2,which made the bandgap energy decrease to 3.81 eV.
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Received: 2006-01-16
Accepted: 2006-05-06
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Corresponding Authors:
SANG Li-xia
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| Cite this article: |
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SANG Li-xia,ZHONG Shun-he,MA Chong-fang. The Study on DRS and Raman Spectroscopy of Surface Modified TiO2/SiO2[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(04): 720-724.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I04/720 |
[1] TANG Bo, JIANG Qi, HE Xi-wen, et al(唐 波，江 琦，何锡文，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 1999, 19(1): 98.
[2] ZHAN Ying-ying, CAI Guo-hui, XIAO Yi-hong, et al(詹瑛瑛，蔡国辉，肖益鸿，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2004, 24(8): 914.
[3] Linsebigler A L, Lu G，Yates J T. Chem. Rev., 1995, 95: 735.
[4] Gao X，Wachs I E. Catalysis Today, 1999, 51: 233.
[5] Anderson C，Bard A J. J. Phys. Chem. B, 1997, 101: 2611.
[6] Lassaletta G, Fernandez A, Espinds J P, et al, J. Phys. Chem. B, 1995, 99: 1484.
[7] Gao X, Bare S R, Fierro J I G, et al. J. Phys. Chem. B, 1998, 102: 5653.
[8] SANG Li-xia, ZHONG Shun-he(桑丽霞，钟顺和). Petrochemiacl Technology(石油化工), 2004, 33: 582.
[9] XU Bin, DONG Lin, CHEN Yi(徐 斌，董 林，陈 懿). Science Bulletin(科学通报)，1998，43: 1003.
[10] Wada K，Yoshida K，Watanable Y. J. Chem. Soc. Faraday Trans., 1995, 91: 1647.
[11] SANG Li-xia, ZHONG Shun-he, XIAO Xiu-fen, et al(桑丽霞, 钟顺和, 肖秀芬, 等). Chemical Journal of Chinese Universities(高等学校化学学报), 2004, 25: 1115.
[12] LI Jing-quan, PAN Hai-bo, HUANG Jin-ling, et al(李景泉，潘海波，黄金陵，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2006，26(11)：2061
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