Open Access Nano Express

Catalytic ozone oxidation of benzene at low temperature over MnOx/Al-SBA-16 catalyst

Jong Hwa Park1, Ji Man Kim2, Mingshi Jin2, Jong-Ki Jeon3, Seung-Soo Kim4, Sung Hoon Park5, Sang Chai Kim6 and Young-Kwon Park17*

Author Affiliations

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

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Nanoscale Research Letters 2012, 7:14  doi:10.1186/1556-276X-7-14

Published: 5 January 2012

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