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Catalytic ozone oxidation of benzene at low temperature over MnOx/Al-SBA-16 catalyst
Authors:Jong Hwa Park  Ji Man Kim  Mingshi Jin  Jong-Ki Jeon  Seung-Soo Kim  Sung Hoon Park  Sang Chai Kim  Young-Kwon Park
Affiliation:(1) Graduate School of Energy and Environmental System Engineering, University of Seoul, Seoul, 130-743, South Korea;(2) Department of Chemistry, BK21 School of Chemical Materials Science and Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, South Korea;(3) Department of Chemical Engineering, Kongju National University, Cheonan, 330-717, South Korea;(4) Department of Chemical Engineering, Kangwon National University, Samcheok, 245-711, South Korea;(5) Department of Environmental Engineering, Sunchon National University, Suncheon, 540-742, South Korea;(6) Department of Environmental Education, Mokpo National University, Muan, 534-729, South Korea;(7) School of Environmental Engineering, University of Seoul, Seoul, 130-743, South Korea
Abstract:The low-temperature catalytic ozone oxidation of benzene was investigated. In this study, Al-SBA-16 (Si/Al = 20) that has a three-dimensional cubic Im3m structure and a high specific surface area was used for catalytic ozone oxidation for the first time. Two different Mn precursors, i.e., Mn acetate and Mn nitrate, were used to synthesize Mn-impregnated Al-SBA-16 catalysts. The characteristics of these two catalysts were investigated by instrumental analyses using the Brunauer-Emmett-Teller method, X-ray diffraction, X-ray photoelectron spectroscopy, and temperature-programmed reduction. A higher catalytic activity was exhibited when Mn acetate was used as the Mn precursor, which is attributed to high Mn dispersion and a high degree of reduction of Mn oxides formed by Mn acetate than those formed by Mn nitrate.
Keywords:Al-SBA-16  Mn precursors  benzene  ozone  catalytic oxidation
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