Room temperature catalytic ozonation of methyl ethyl ketone over mesoporous MnOx/Al2O3 catalysts

Kannapu Hari Prasad Reddy; Youna Park; Jihyeon Song; Young Kwon Park

doi:10.14478/ace.2021.1044

Room temperature catalytic ozonation of methyl ethyl ketone over mesoporous MnO_x/Al₂O₃ catalysts

Kannapu Hari Prasad Reddy, Youna Park, Jihyeon Song, Young Kwon Park

School of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Catalytic ozonation of methyl ethyl ketone (MEK) has been examined over mesoporous MnO_x/Al₂O₃ (MA) catalysts developed by a solvent deficient method using two different manganese precursors including manganese chloride (C) and manganese sulfate (S) at room temperature. The maximum catalytic activities of MA with C (MEK removal efficiency and ozone decomposition of 98.4 and 93.7%, respectively) were higher than those of MA with S (MEK removal efficiency and ozone decomposition of 96 and 68%, respectively). Also the catalytic stability of MA with C was much higher than that of MA with S. The physico-chemical properties of catalysts are well correlated with the activity results, which confirmed that fine dis-persion of MnO_x species with high ratios of Mn³⁺/Mn⁴⁺ and more acid sites are attributed to the higher catalyst stability for the MA-C catalyst.

Original language	English
Pages (from-to)	483-486
Number of pages	4
Journal	Applied Chemistry for Engineering
Volume	32
Issue number	4
DOIs	https://doi.org/10.14478/ace.2021.1044
State	Published - Aug 2021

Keywords

Alumina
Manganese chloride
Methyl ethyl ketone
Ozone
Room temperature

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10.14478/ace.2021.1044

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title = "Room temperature catalytic ozonation of methyl ethyl ketone over mesoporous MnOx/Al2O3 catalysts",

abstract = "Catalytic ozonation of methyl ethyl ketone (MEK) has been examined over mesoporous MnOx/Al2O3 (MA) catalysts developed by a solvent deficient method using two different manganese precursors including manganese chloride (C) and manganese sulfate (S) at room temperature. The maximum catalytic activities of MA with C (MEK removal efficiency and ozone decomposition of 98.4 and 93.7%, respectively) were higher than those of MA with S (MEK removal efficiency and ozone decomposition of 96 and 68%, respectively). Also the catalytic stability of MA with C was much higher than that of MA with S. The physico-chemical properties of catalysts are well correlated with the activity results, which confirmed that fine dis-persion of MnOx species with high ratios of Mn3+/Mn4+ and more acid sites are attributed to the higher catalyst stability for the MA-C catalyst.",

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author = "Reddy, {Kannapu Hari Prasad} and Youna Park and Jihyeon Song and Park, {Young Kwon}",

year = "2021",

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language = "English",

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T1 - Room temperature catalytic ozonation of methyl ethyl ketone over mesoporous MnOx/Al2O3 catalysts

AU - Reddy, Kannapu Hari Prasad

AU - Park, Youna

AU - Song, Jihyeon

AU - Park, Young Kwon

PY - 2021/8

Y1 - 2021/8

N2 - Catalytic ozonation of methyl ethyl ketone (MEK) has been examined over mesoporous MnOx/Al2O3 (MA) catalysts developed by a solvent deficient method using two different manganese precursors including manganese chloride (C) and manganese sulfate (S) at room temperature. The maximum catalytic activities of MA with C (MEK removal efficiency and ozone decomposition of 98.4 and 93.7%, respectively) were higher than those of MA with S (MEK removal efficiency and ozone decomposition of 96 and 68%, respectively). Also the catalytic stability of MA with C was much higher than that of MA with S. The physico-chemical properties of catalysts are well correlated with the activity results, which confirmed that fine dis-persion of MnOx species with high ratios of Mn3+/Mn4+ and more acid sites are attributed to the higher catalyst stability for the MA-C catalyst.

AB - Catalytic ozonation of methyl ethyl ketone (MEK) has been examined over mesoporous MnOx/Al2O3 (MA) catalysts developed by a solvent deficient method using two different manganese precursors including manganese chloride (C) and manganese sulfate (S) at room temperature. The maximum catalytic activities of MA with C (MEK removal efficiency and ozone decomposition of 98.4 and 93.7%, respectively) were higher than those of MA with S (MEK removal efficiency and ozone decomposition of 96 and 68%, respectively). Also the catalytic stability of MA with C was much higher than that of MA with S. The physico-chemical properties of catalysts are well correlated with the activity results, which confirmed that fine dis-persion of MnOx species with high ratios of Mn3+/Mn4+ and more acid sites are attributed to the higher catalyst stability for the MA-C catalyst.

KW - Alumina

KW - Manganese chloride

KW - Methyl ethyl ketone

KW - Ozone

KW - Room temperature

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DO - 10.14478/ace.2021.1044

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JO - Applied Chemistry for Engineering

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Room temperature catalytic ozonation of methyl ethyl ketone over mesoporous MnO_x/Al₂O₃ catalysts

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Keywords

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