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Received September 8, 2003
Accepted November 15, 2003
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High-throughput Screening of Transition Metal-doped TiO2 in Photodecomposition of Phenol Under Visible Light
1Department of Chemical & Biomolecular Engineering and Center for Ultramicrochemical Process Systems, Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Korea 2Laboratory of Ultramicro-Chemical Systems and Department of Bioengineering, University of California at Berkeley, CA 94720, Korea 3, Korea
siwoo@kaist.ac.kr
Korean Journal of Chemical Engineering, January 2004, 21(1), 123-125(3), 10.1007/BF02705389
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Abstract
A catalyst library consisting of 20 catalysts with different metal and weight fraction-doped TiO2 was prepared at one time for discovering the novel metal-doped TiO2 photocatalyst, which is active under visible light irradiation. Combinatorial microbeam XRD and UV-vis spectrometer were used for analysis of crystal structure and photoactivity of 20 catalysts in the library, respectively. Photodecomposition of phenol was chosen as a probe reaction. The library preparation, XRD characterization and reaction test for 20 catalysts were completed within 48 hours. Among the catalysts in the library, 1.5 wt% Co/TiO2 showed the best activity for phenol degradation.
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References
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Lettmann C, Hinrichs H, Maier WF, Angew. Chem.-Int. Edit., 40(17), 3160 (2001)
Ollis DF, Al-Ekabi H, "Photocatalytic Pufirication and Treatment of Water and Air," Elsevier, Amsterdam (1993)
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