Removal of azinphos methyl by alfalfa plants (Medicago sativa L.) in a soil-free system

Flocco, Cecilia G.; Carranza, Mercedes; Carvajal, Loreto; Loewy, Ruth M.; D’Angelo, Alessandra; Giulietti, Ana María

doi:10.1016/j.scitotenv.2003.08.024

Cited by 21 publications

(1 citation statement)

References 24 publications

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“…27 Azinphos methyl is tolerated in several countries. 28 It is one of the most toxic organophosphorus pesticides for nontarget organisms. The photodecomposition of azinphos methyl was shown to occur efficiently on soils and leaf surfaces.…”

Section: ■ Introductionmentioning

confidence: 99%

Simulated Solar Light Phototransformation of Organophosphorus Azinphos Methyl at the Surface of Clays and Goethite

Ménager

Sarakha

2012

Environ. Sci. Technol.

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The photochemical behavior of the pesticide azinphos methyl at the surface of clays (kaolinite, bentonite) and goethite was studied using Suntest setup (λ > 300 nm). The quantum yield on the clays was found to be roughly three times lower than that in aqueous solution. However, the photochemical efficiency was much higher at the surface of goethite owing to its photocatalytic activity through the hydroxyl radical production. The added humic substances on kaolonite show an inhibition of azinphos methyl degradation while the incorporation of iron(III) aquacomplexes leads to an important increase of the disappearance together with the formation of iron(II). Hydroxyl radical species were found to be formed either by excitation of goethite or clays. The goethite support acts as a more efficient catalyst for the formation of these reactive oxygen species. The photodecomposition reactions observed were (i) hydrolysis process leading to the formation of benzotriazone and the oxidation of the P = S bond giving rise to the formation of the oxon derivative, and (ii) homolytic cleavage of the N-C and C-S bonds of the organophosphorus bridge leading to the formation of dimers that appear to be specific to the irradiation at the surface of solid supports since they were not observed when the irradiation was performed in aqueous media: a statement that is related to the presence of aggregates at the surface of solid supports.

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Section: ■ Introductionmentioning

confidence: 99%

Simulated Solar Light Phototransformation of Organophosphorus Azinphos Methyl at the Surface of Clays and Goethite

Ménager

Sarakha

2012

Environ. Sci. Technol.

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Highly Selective Aqueous Phase Detection of Azinphos‐Methyl Pesticide in ppb Level Using a Cage‐Connected 3D MOF

Singha¹,

Majee

Mondal

et al. 2017

ChemistrySelect

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A new metal-organic framework (MOF) [Cd 2.5 (PDA)(tz) 3 ] {PDA = 1,4-Phenylenediacetate and tz = 1,2,4-triazolate}, 1, has been synthesized by solvothermal reaction. The structure and morphology of 1 was systematically characterized by Powder X-ray diffraction (PXRD), Single crystal X-ray diffraction (SCXRD), Thermogravimetric analysis (TGA), Infrared spectroscopy (IR) and Field emission scanning electron microscopy (FESEM). Single crystal X-ray data of 1 confirmed cage connected threedimensional structure with three different types of Cd 2 + ions (square pyramidal, trigonal antiprism and octahedral geometries). Photoluminescence study of 1 in aqueous medium showed emission at 290 nm upon excitation at 225 nm. This emissive property was used for the highly selective and sensitive detection of azinphos-methyl pesticide in aqueous medium through luminescence quenching. Compound 1 is able to detect azinphos-methyl with a detection limit of 16 ppb and its sensitivity remains unchanged in the presence of other pesticides.

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Phytoremediation Techniques for Pesticide Contaminations

Lorber¹,

Laurent²

2010

Alternative Farming Systems, Biotechnology, Drought Stress and Ecological Fertilisation

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Removal of azinphos methyl by alfalfa plants (Medicago sativa L.) in a soil-free system

Cited by 21 publications

References 24 publications

Simulated Solar Light Phototransformation of Organophosphorus Azinphos Methyl at the Surface of Clays and Goethite

Simulated Solar Light Phototransformation of Organophosphorus Azinphos Methyl at the Surface of Clays and Goethite

Highly Selective Aqueous Phase Detection of Azinphos‐Methyl Pesticide in ppb Level Using a Cage‐Connected 3D MOF

Phytoremediation Techniques for Pesticide Contaminations

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