| 光谱学与光谱分析 |
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| Meso-Tetraphenylporphyrinatozinc/TiO2 Nanocompound Synthesized by In-situ Method and Photocatalysis under Visible-Light Irradiation |
| LI Jing-quan, PAN Hai-bo*, HUANG Jin-ling, CHEN Nai-sheng |
| College of Chemistry and Chemical Engineering, Fuzhou University，Fuzhou 350002, China |
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Abstract The meso-tetraphenylporphyrinatozinc/titanium dioxide (ZnTPP/TiO2) nanocompounds with different molar ratios were synthesized by sol-gel method at 400 ℃, 4h. The nanocompounds were characterized by XRD, UV-Vis, FTIR and Fluorescence methods. Anatase for TiO2 in the nanocompounds was defined, and ZnTPP was also obtained during in-situ process. Photocatalystic activities of them influenced by the proportion between ZnTPP and TiO2 were discussed under visible light. The results show that a nanocompound (ZnTPP∶TiO2=1∶100 mol%) has the best photocatalystic activity, and the degradation of Rhodanmine B is up to 92% after 150 minutes under visible light irradiation. The sensitization mechanism is that the photogenerated charge carriers are separated by Zn—O bond between ZnTPP and TiO2.
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Received: 2005-08-08
Accepted: 2005-11-30
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Corresponding Authors:
PAN Hai-bo
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| Cite this article: |
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LI Jing-quan,PAN Hai-bo,HUANG Jin-ling, et al. Meso-Tetraphenylporphyrinatozinc/TiO2 Nanocompound Synthesized by In-situ Method and Photocatalysis under Visible-Light Irradiation [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(11): 2061-2064.
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https://www.gpxygpfx.com/EN/Y2006/V26/I11/2061 |
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