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Mesoporous material supported manganese oxides (MnOx/MCM-41) catalytic ozonation of nitrobenzene in water

Paper ID Volume ID Publish Year Pages File Format Full-Text
47061 46457 2011 9 PDF Available
Title
Mesoporous material supported manganese oxides (MnOx/MCM-41) catalytic ozonation of nitrobenzene in water
Abstract

Mesoporous material (MCM-41) supported manganese oxides (MnOx) as catalyst was introduced into ozonation process. The catalytic activity of MnOx/MCM-41 on ozonation of nitrobenzene (NB) was evaluated. Both of the indirect method, using tert-butanol (TBA) as a scavenger, and the direct electron spin resonance (ESR) determination technology were employed to investigate whether the high reactivity of MnOx/MCM-41 on ozonation is ascribed to the promotion of the generation of hydroxyl radicals. Though the presence of TBA has insignificant effect on MnOx/MCM-41 catalytic ozonation of NB, stronger signal intensity of DMPO-OH adduct was observed in MnOx/MCM-41 catalytic ozonation than that of in ozonation alone system. Furthermore, the catalytic performance of MnOx/MCM-41 on ozone in different water background (tap water, prepared inorganic and organic water) was investigated.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► MCM-41 supported MnOx as catalyst was introduced into ozonation process. ► MnOx/MCM-41 shows good catalytic activity on ozonation of nitrobenzene in water. ► tert-Butanol has insignificant effect on catalytic ozonation of nitrobenzene ► Stronger DMPO-OH signal intensity was observed in MnOx/MCM-41 catalytic ozonation.

Keywords
Manganese oxides (MnOx); Mesoporous material (MCM-41); Heterogeneous catalytic ozonation; Nitrobenzene; Hydroxyl radicals
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Mesoporous material supported manganese oxides (MnOx/MCM-41) catalytic ozonation of nitrobenzene in water
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 106, Issues 1–2, 21 July 2011, Pages 195–203
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us