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Ozone: Science & Engineering
The Journal of the International Ozone Association
Volume 35, 2013 - Issue 6
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Original Articles

Effect of Mn Dispersion on Gas Phase Ozone Decomposition at Room Temperature Using Natural Manganese Oxides

Sung Su Kim Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia, V6T 1Z3, Canada; Department of Environmental Energy Engineering, Kyonggi University, Suwon-si, Gyeonggi-do, 442-760, South Korea
,
Sung Chang Hong Department of Environmental Energy Engineering, Kyonggi University, Suwon-si, Gyeonggi-do, 442-760, South KoreaCorrespondence[email protected]
&
Keun Hee Han Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia, V6T 1Z3, Canada; Greenhouse Gas Department, Korea Institute of Energy Research, Daejeon, 305-343, South KoreaCorrespondence[email protected]
Pages 514-518 | Received 07 Jan 2013, Accepted 05 Jun 2013, Published online: 27 Nov 2013
 
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Abstract

In this study, various analyses were performed to evaluate the ozone removal characteristics using natural manganese ore (NMO) at room temperature. NMO exists primarily in the form of MnO2, and the specific forms of manganese oxide are formed as the calcination temperature increases. The activity tests, XRD, BET, and XPS analyses confirmed that the dispersion of manganese site exposed to the surface was a critical factor for ozone removal using NMO. To evaluate the actual application of NMO as a catalyst for ozone decomposition, NMO was also made as a form of monolith; as a result, the catalyst showed an excellent conversion rate (over 80%) even at space velocity 30,000 h−1.

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