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Volume 29 Issue 2
Apr.  2016
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Zhong-liang Shi, Man Guo, Lin-jun Wang, Shu-hua Yao. Preparation, Characterization and Photocatalytic Activity of Fe, La Co-doped Nanometer Titanium Dioxide Photocatalysts[J]. Chinese Journal of Chemical Physics , 2016, 29(2): 199-204. DOI: 10.1063/1674-0068/29/cjcp1504084
Citation: Zhong-liang Shi, Man Guo, Lin-jun Wang, Shu-hua Yao. Preparation, Characterization and Photocatalytic Activity of Fe, La Co-doped Nanometer Titanium Dioxide Photocatalysts[J]. Chinese Journal of Chemical Physics , 2016, 29(2): 199-204. DOI: 10.1063/1674-0068/29/cjcp1504084
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Preparation, Characterization and Photocatalytic Activity of Fe, La Co-doped Nanometer Titanium Dioxide Photocatalysts

  • School of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China

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  • Received Date: April 27, 2015
  • Revised Date: July 31, 2015
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    • Abstract
  • A series of photocatalysts of un-doped, single-doped and co-doped nanometer titanium diox-ide (TiO2) have been successfully prepared by template method using Fe(NO3)3·9H2O, La(NO3)3·6H2O, and tetrabutyl titanate as precursors and glucan as template. Scanning electron microscopy, X-ray diffraction, and N2 adsorption-desorption measurement were em-ployed to characterize the morphology, crystal structure and surface structure of the samples. The photo-absorbance of the obtained catalysts was measured by UV-Vis absorption spec-troscopy, and the photocatalytic activities of the prepared samples under UV and visible light were estimated by measuring the degradation rate of methyl orange in an aqueous solu-tion. The characterizations indicated that the prepared photocatalysts consisted of anatase phase and possessed high surface area of ca. 163-176 m2/g. It was shown that the Fe and La co-doped nano-TiO2 could be activated by visible light and could thus be used as an effective catalyst in photo-oxidation reactions. The synergistic effect of Fe and La co-doping played an important role in improving the photocatalytic activity. In addition, the possibil-ity of cyclic usage of co-doped nano-TiO2 was also confirmed, the photocatalytic activity of codoped nano-TiO2 remained above 89.6% of the fresh sample after being used four times.
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