Fabrication of novel zeolite NaA/MgFe۲O۴ nanocomposite catalyst for the effective removal of chemical warfare nerve agent simulant

The aim of present study is to investigate the effective removal of chemical warfare nerve agent simulant dimethyl methyl phosphonate from water solution by the novel zeolite NaA/MgFe۲O۴ nanocomposite catalyst.For the purpose, MgFe۲O۴ nanoparticles were successfully fabricated over the zeolite NaA via the hydrothermal method and identified using FESEM, EDAX, XRD, FTIR and AFM analyses.The performance of the NaA/MgFe۲O۴ nanocomposite catalyst was then evaluated for the removal (adsorption and degradation) of DMMP agent simulant and monitored by using a GC-FID technique.Furthermore, the influence of different parameters involving contact time, initial concentration, adsorbent dose, and catalyst type on the removal of DMMP were investigated. The obtained outcomes from GC-FID analysis verified the maximum removal more than ۹۶% for DMMP agent simulant. The parameters including: contact time (۴۰ min), adsorbent dose (۰.۱ g), and initial concentration (۵۰ mg/L) were gained as the optimized amounts for the removal reaction. Additionally, the non-toxic methyl phosphoric acid (MPA) as the degradation reaction product of the DMMP by the NaA/MgFe۲O۴ catalyst was identified.

کلیدواژه ها:

Zeolite ، Chemical warfare ، Catalyst ، Nerve agent