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International Journal of Bio-Inorganic Hybrid Nanomaterials
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(2013). The Detoxification of Methamidophos as an Organophophorus Insecticide on the Magnetite (Fe3O4) Nanoparticles/Ag-NaY Faujasite Molecular Sieve Zeolite (FMSZ) Composite. International Journal of Bio-Inorganic Hybrid Nanomaterials, 2(4), 517-524.
. "The Detoxification of Methamidophos as an Organophophorus Insecticide on the Magnetite (Fe3O4) Nanoparticles/Ag-NaY Faujasite Molecular Sieve Zeolite (FMSZ) Composite". International Journal of Bio-Inorganic Hybrid Nanomaterials, 2, 4, 2013, 517-524.
(2013). 'The Detoxification of Methamidophos as an Organophophorus Insecticide on the Magnetite (Fe3O4) Nanoparticles/Ag-NaY Faujasite Molecular Sieve Zeolite (FMSZ) Composite', International Journal of Bio-Inorganic Hybrid Nanomaterials, 2(4), pp. 517-524.
The Detoxification of Methamidophos as an Organophophorus Insecticide on the Magnetite (Fe3O4) Nanoparticles/Ag-NaY Faujasite Molecular Sieve Zeolite (FMSZ) Composite. International Journal of Bio-Inorganic Hybrid Nanomaterials, 2013; 2(4): 517-524.

The Detoxification of Methamidophos as an Organophophorus Insecticide on the Magnetite (Fe3O4) Nanoparticles/Ag-NaY Faujasite Molecular Sieve Zeolite (FMSZ) Composite

Article 8, Volume 2, Issue 4, Winter 2013, Page 517-524  XML PDF (828.46 K)
Document Type: Research Paper
Abstract
This work undertakes the study of the detoxification reactions of O, S-dimethyl phosphoramidithioate (methamidophos) as an organophophorus insecticide on the 14.7 wt% magnetite (Fe3O4) nanoparticles/Ag-NaY faujasite molecular sieve zeolite (FMSZ) composite. The influence of solvent (methanol, acetonitrile and n-hexane) on the detoxification potential of composite was investigated. For this survey, in the first step, sodium type-Y (NaY) zeolite was synthesized by hydrothermal method (HM). Then, Ag-NaY zeolite was prepared from NaY zeolite by ion-exchange method (IEM). In the next step, Fe3O4 nanoparticles (NPs) were incorporation and deposited on the Ag-NaY zeolite structure by using precipitation method (PM). The synthesized samples were characterized by SEM, EDAX and XRD techniques. The GC-FID and IR analyses results demonstrated that about 99% of methamidophos was detoxified (adsorbed) via this composite at n-hexane solvent after 10 h. On the other hand, the results for the acetonitrile and methanol solvents were lower. It seems that a nonpolar solvent transfer to the reactive surface site on the composite without occupying and blocking of these sites.
Keywords
detoxification; O, S-dimethyl phosphoramidithioate (methamidophos); insecticide; magnetite (Fe3O4) nanoparticles/Ag-NaY faujasite molecular sieve zeolite (FMSZ); Composite
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