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Received August 13, 2015
Accepted November 11, 2015
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Selective oxidation of H2S to sulfur over CeO2-TiO2 catalyst
School of Chemical and Biomolecular Engineering, Pusan National University, Busan 46241, Korea
dwpark@pusan.ac.kr
Korean Journal of Chemical Engineering, March 2016, 33(3), 838-843(6), 10.1007/s11814-015-0240-6
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Abstract
The catalytic oxidation of hydrogen sulfide (H2S) to elemental sulfur was studied over CeO2-TiO2 catalysts. The synthesized catalysts were characterized by various techniques such as X-ray diffraction, BET, X-ray photoelectron spectroscopy (XPS), temperature-programmed desorption of ammonia, and scanning electron microscopy (SEM). Catalytic performance studies of the CeO2-TiO2 catalysts showed that H2S was successfully converted to elemental sulfur without considerable emission of sulfur dioxide. CeO2-TiO2 catalysts with Ce/Ti=1/5 and 1/3 exhibited the highest H2S conversion, possibly due to the uniform dispersion of metal oxides, high surface area, and high amount of acid sites.
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Hoffmann MR, Martin ST, Choi WY, Bahnemann DW, Chem. Rev., 95(1), 69 (1995)
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Yang SX, Zhu WP, Jiang ZP, Chen ZX, Wang JB, Appl. Surf. Sci., 252(24), 8499 (2006)
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Tsyganenko AA, Pozdnyakov DV, Filimonov VN, J. Mol. Struct., 29, 299 (1975)
