Positive effects of impregnation of Fe-Oxide in mesoporous Al-Oxides on the decontamination of dimethyl methylphosphonate

Tae Gyun Woo; Byeong Jun Cha; Young Dok Kim; Hyun Ook Seo

doi:10.3390/catal9110898

Positive effects of impregnation of Fe-Oxide in mesoporous Al-Oxides on the decontamination of dimethyl methylphosphonate

Tae Gyun Woo, Byeong Jun Cha, Young Dok Kim, Hyun Ook Seo

Dept. of Fine Chemistry

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

7 Scopus citations

Abstract

Dimethyl methylphosphonate (DMMP) is an important simulant of organophosphates pesticides and chemical warfare nerve agents. Here, we investigated the catalytic decontamination of DMMP on Fe-oxide impregnated mesoporous Al₂O₃. Fe-oxide/Al₂O₃ sample was prepared via the temperature regulated chemical vapor deposition of Fe-oxide on mesoporous Al₂O₃ and post-annealing at 750^°C. The Fe-oxide/Al₂O₃ and bare Al₂O₃ samples were exposed to DMMP-containing dry air at room temperature to study the effects of Fe-oxide impregnation on the reactive adsorption of DMMP. The facilitation of DMMP degradation into CO₂ and methanol at room temperature in the presence of nano-dispersed Fe-oxide was evidenced by gas-chromatograph and Fourier transform-infrared (FT-IR) absorption spectroscopy. In addition, temperature programmed oxidation (TPO) experiments and gas chromatography (Agilent, 6890) equipped with mass spectrometer (Agilent, 5973N) (GC/MS) analyses revealed that the minimum temperature that was required for total oxidation of DMMP into CO₂ can also be lowered by Fe-oxide impregnation in mesoporous Al₂O₃.

Original language	English
Article number	898
Journal	Catalysts
Volume	9
Issue number	11
DOIs	https://doi.org/10.3390/catal9110898
State	Published - Nov 2019

Keywords

Catalytic decontamination
Dimethyl methylphosphonate
Fe-oxide
Mesoporous AlO

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title = "Positive effects of impregnation of Fe-Oxide in mesoporous Al-Oxides on the decontamination of dimethyl methylphosphonate",

abstract = "Dimethyl methylphosphonate (DMMP) is an important simulant of organophosphates pesticides and chemical warfare nerve agents. Here, we investigated the catalytic decontamination of DMMP on Fe-oxide impregnated mesoporous Al2O3. Fe-oxide/Al2O3 sample was prepared via the temperature regulated chemical vapor deposition of Fe-oxide on mesoporous Al2O3 and post-annealing at 750°C. The Fe-oxide/Al2O3 and bare Al2O3 samples were exposed to DMMP-containing dry air at room temperature to study the effects of Fe-oxide impregnation on the reactive adsorption of DMMP. The facilitation of DMMP degradation into CO2 and methanol at room temperature in the presence of nano-dispersed Fe-oxide was evidenced by gas-chromatograph and Fourier transform-infrared (FT-IR) absorption spectroscopy. In addition, temperature programmed oxidation (TPO) experiments and gas chromatography (Agilent, 6890) equipped with mass spectrometer (Agilent, 5973N) (GC/MS) analyses revealed that the minimum temperature that was required for total oxidation of DMMP into CO2 can also be lowered by Fe-oxide impregnation in mesoporous Al2O3.",

keywords = "Catalytic decontamination, Dimethyl methylphosphonate, Fe-oxide, Mesoporous AlO",

author = "Woo, \{Tae Gyun\} and Cha, \{Byeong Jun\} and Kim, \{Young Dok\} and Seo, \{Hyun Ook\}",

note = "Publisher Copyright: {\textcopyright} 2019 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2019",

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doi = "10.3390/catal9110898",

language = "English",

volume = "9",

journal = "Catalysts",

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T1 - Positive effects of impregnation of Fe-Oxide in mesoporous Al-Oxides on the decontamination of dimethyl methylphosphonate

AU - Woo, Tae Gyun

AU - Cha, Byeong Jun

AU - Kim, Young Dok

AU - Seo, Hyun Ook

PY - 2019/11

Y1 - 2019/11

N2 - Dimethyl methylphosphonate (DMMP) is an important simulant of organophosphates pesticides and chemical warfare nerve agents. Here, we investigated the catalytic decontamination of DMMP on Fe-oxide impregnated mesoporous Al2O3. Fe-oxide/Al2O3 sample was prepared via the temperature regulated chemical vapor deposition of Fe-oxide on mesoporous Al2O3 and post-annealing at 750°C. The Fe-oxide/Al2O3 and bare Al2O3 samples were exposed to DMMP-containing dry air at room temperature to study the effects of Fe-oxide impregnation on the reactive adsorption of DMMP. The facilitation of DMMP degradation into CO2 and methanol at room temperature in the presence of nano-dispersed Fe-oxide was evidenced by gas-chromatograph and Fourier transform-infrared (FT-IR) absorption spectroscopy. In addition, temperature programmed oxidation (TPO) experiments and gas chromatography (Agilent, 6890) equipped with mass spectrometer (Agilent, 5973N) (GC/MS) analyses revealed that the minimum temperature that was required for total oxidation of DMMP into CO2 can also be lowered by Fe-oxide impregnation in mesoporous Al2O3.

AB - Dimethyl methylphosphonate (DMMP) is an important simulant of organophosphates pesticides and chemical warfare nerve agents. Here, we investigated the catalytic decontamination of DMMP on Fe-oxide impregnated mesoporous Al2O3. Fe-oxide/Al2O3 sample was prepared via the temperature regulated chemical vapor deposition of Fe-oxide on mesoporous Al2O3 and post-annealing at 750°C. The Fe-oxide/Al2O3 and bare Al2O3 samples were exposed to DMMP-containing dry air at room temperature to study the effects of Fe-oxide impregnation on the reactive adsorption of DMMP. The facilitation of DMMP degradation into CO2 and methanol at room temperature in the presence of nano-dispersed Fe-oxide was evidenced by gas-chromatograph and Fourier transform-infrared (FT-IR) absorption spectroscopy. In addition, temperature programmed oxidation (TPO) experiments and gas chromatography (Agilent, 6890) equipped with mass spectrometer (Agilent, 5973N) (GC/MS) analyses revealed that the minimum temperature that was required for total oxidation of DMMP into CO2 can also be lowered by Fe-oxide impregnation in mesoporous Al2O3.

KW - Catalytic decontamination

KW - Dimethyl methylphosphonate

KW - Fe-oxide

KW - Mesoporous AlO

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DO - 10.3390/catal9110898

M3 - Article

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SN - 2073-4344

VL - 9

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JF - Catalysts

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ER -

Positive effects of impregnation of Fe-Oxide in mesoporous Al-Oxides on the decontamination of dimethyl methylphosphonate

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Keywords

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