Highly efficient decontamination of nerve agent sarin surrogate DMMP using the novel NiFe2O4/NaY-type zeolite nanocomposite adsorbent

In this work, NiFe2O4/NaY-type zeolite nanocomposite was manufactured by the hydrothermal strategy and subsequently characterized via FE-SEM, EDX, EDX dot mapping, FTIR, XRD and VSM techniques. The decontamination of nerve agent sarin surrogate dimethyl methyl phosphonate (DMMP) was then conducted over the as-synthesized NiFe2O4/NaY-type zeolite nanocomposite adsorbent from water media using 31PNMR analysis. Various physicochemical parameters, involving contact time, adsorbent dosage and initial DMMP concentration on the decontamination of DMMP nerve simulant were precisely investigated. 31PNMR analysis data verified that the maximumdecontamination of 98.2% for DMMP. The factors obtained including contact time of 60 min, initial concentration of 60 mg/L and adsorbent dose of 50 mg were considered as the optimal amounts for the decontamination reaction. Finally, methyl phosphoric acid (MPA) as the harmless degradation product of DMMP on the NiFe2O4/NaY-type zeolite nanocomposite was emerged and recognized.

Highly efficient decontamination of nerve agent sarin surrogate DMMP using the novel NiFe2O4/NaY-type zeolite nanocomposite adsorbent Keywords:

NiFe2O4/NaY , zeolite , nanocomposite , adsorbent , decontamination , DMMP , MPA.