An efficient photocatalytic degradation of Quinalphos pesticide under visible light using zinc oxide/magnesium oxide nanocomposites as a novel photocatalyst
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Title |
An efficient photocatalytic degradation of Quinalphos pesticide under visible light using zinc oxide/magnesium oxide nanocomposites as a novel photocatalyst
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Creator |
Sibmah, S
Kirupavasam, E K |
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Subject |
Pesticide
nanocomposite contaminants Quinalphos photocatalysis visible light |
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Description |
901-908
About one million tons of pesticide effluents were discharged into natural streams and water bodies from local industries and agricultural fields. In view of growing environmental issues there is a requirement for the termination of pesticides and its residues from local and commercial water streams. Photocatalytic degradation method is regarded as a convenient method for the treatment of organic contaminants because of its low cost, lack of secondary pollutants and ecofriendly character. In this study, an enhanced and visible light effective ZnO/MgO nanocomposite photocatalyst has been synthesized by a wet chemical method using zinc acetate dihydrate and magnesium chloride as precursor. The prepared sample has been examined to diagnose its structural, morphological, optical and fluorescence properties using XRD, UVVis, SEM, EDX, FT-IR and fluorescence spectral analysis. The organophosphorus pesticide, Quinalphos, has a wide application worldwide, particularly to control the population of pests. Due to its toxic character, it is necessary to eradicate Quinalphos and its residues from the environment. The synthesised ZnO/MgO nanocomposite is analysed to degrade Quinalphos pesticide under direct sunlight at neutral pH. The photocatalytic performance of ZnO/MgO nanocomposite is examined by loading 4 mg/L of the catalyst in 20 ppm of the Quinalphos solution to achieve 98% degradation with in forty minutes. Moreover, this nanocomposite could be separated and utilised up to five cycles with no change in its activity. |
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Date |
2022-08-16T08:30:03Z
2022-08-16T08:30:03Z 2022-08 |
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Type |
Article
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Identifier |
2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscpr.res.in/handle/123456789/60293 https://doi.org/10.56042/ijc.v61i8.59489 |
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Language |
en
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Publisher |
NIScPR-CSIR,India
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Source |
IJC Vol.61(08) [AUG 2022]
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