A NaX zeolite framework containing magnetic MgFe2O4/CdO nanoparticles: synthesis, characterization and catalytic performance in the decontamination of 2-chloroethyl phenyl sulfide (2-CEPS) as a model of sulfur mustard agent

The present study highlights the successful fabrication of a zeolite NaX/MgFe2O4/CdO magnetically separable nanocomposite catalyst via an ultrasonic-assisted hydrothermal strategy for the decontamination of sulfur mustard agent simulant 2-chloroethyl phenyl sulfide (2-CEPS) for the first time. The a...

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Bibliographic Details
Published inNew journal of chemistry Vol. 45; no. 45; pp. 21315 - 21326
Main Authors Sadeghi, Meysam, Farhadi, Saeed, Abedin Zabardasti
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 07.12.2021
Subjects
Catalysts
Chemical synthesis
Chemical warfare
Decontamination
Degradation
Emission analysis
Heptanes
Inductively coupled plasma
Magnesium ferrites
Mustard gas
Nanocomposites
Nanoparticles
Solvents
Sulfur
Zeolites
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Summary:The present study highlights the successful fabrication of a zeolite NaX/MgFe2O4/CdO magnetically separable nanocomposite catalyst via an ultrasonic-assisted hydrothermal strategy for the decontamination of sulfur mustard agent simulant 2-chloroethyl phenyl sulfide (2-CEPS) for the first time. The as-fabricated nanocomposite was fully characterized using FESEM, TEM, EDAX, FTIR spectroscopy, XRD, AFM, VSM, N2-BET, and ICP-AES analyses. The decontamination process of 2-CEPS was monitored via GC-FID analysis. Furthermore, the effects of different analytical parameters such as contact time, catalyst type, catalyst amount and solvent type on the decontamination efficiency of 2-CEPS were precisely investigated. By using 50 mg of NaX/MgFe2O4/CdO catalyst in the presence of an n-heptane non-polar solvent, a decontamination efficiency of 100% was achieved after a contact time of 120 min. The decontamination process rate was verified by a first-order kinetic model. The obtained outcomes demonstrated that the apparent rate constant (kapp) and half-life time (t1/2) were 0.219 min−1 and 31.64 min, respectively. Lastly, the presence of hydrolysis and elimination products, namely 2-hydroxy ethyl phenyl sulfide (2-HEPS) and phenyl vinyl sulfide (PVS), from the effective degradation of 2-CEPS over the NaX/MgFe2O4/CdO catalyst was confirmed, and GC-MS analysis was performed to identify the degradation products of this agent simulant. This illustrates that the NaX/MgFe2O4/CdO catalyst could potentially be utilized for the removal of hazardous chemical warfare agents.
ISSN:1144-0546
1369-9261
DOI:10.1039/d1nj04202e