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Study of the Photodegradation Kinetics of Fluometuron by UV Absorption Spectrophotometry and Fluorescence

Diégane Sarr, Diène Diégane Thiaré, Pape Abdoulaye Diaw, Khémesse Kital, Adama Saba, Cheikh Sall, Atanasse Coly, François Delattre, Alphonse Tine

Asian Journal of Chemical Sciences · pp. 49–59 · Published 19 Nov 2022

10.9734/ajocs/2022/v12i3223

Abstract

In order to predict the fate of fluometuron in the aquatic environment and to assess the risk that it may pose, we studied its photolysis reaction in aqueous media. This reaction was monitored by UV absorption and fluorescence spectroscopy. UV irradiation source consisting of a 254 nm mercury lamp was used.  The study showed that fluometuron is unstable under the effect of light radiation when irradiated in water. The absorption band and the emission of this product were at 244 nm and 325 nm respectively. This study also shows that the photodegradation of fluometuron in water follows first order kinetics regardless of the method followed.  However, a difference was noted in the half-life times (t1/2). Indeed, these times found in UV and fluorescence are respectively 18.2 min and 6.6 min. The relatively lower value obtained in fluorescence could be explained by the fact that the latter is more sensitive to UV and fluorescence. In all cases, the half-lives found were relatively short (t1/2<1h). For more information on the photolysis of this herbicide, these two methods were combined with NMR and GC-MS to identify the different photoproducts that may be formed.

Fluometuron photodegradation UV fluorescence photoproducts

References (18)

  1. 1 Fluorescence probes used for detection of reactive oxygen species [DOI]
  2. 2 Photocatalytic transformation of sixteen substituted phenylurea herbicides in aqueous semiconductor suspensions: Intermediates and degradation pathways [DOI]
  3. 3 Photolysis of fluometuron in the presence of natural water constituents [DOI]
  4. 4 Microwave-assisted carbofuran degradation in the presence of GAC, ZVI and H2O2: Influence of reaction temperature and pH [DOI]
  5. 5 Effect of Conventional vs. No‐Tillage on Pesticide Leaching to Shallow Groundwater [DOI]
  6. 6 Toxicity assessment of atrazine, alachlor, and carbofuran and their respective environmental metabolites using microtox [DOI]
  7. 7 Photodegradation of Metolachlor in Water in the Presence of Soil Mineral and Organic Constituents [DOI]
  8. 8 Tillage and cover effects on soil microbial properties and fluometuron degradation [DOI]
  9. 9 Degradation of 2,4-D and fluometuron in cover crop residues [DOI]
  10. 10 Photodegradation of the herbicide penoxsulam in aqueous methanol and acetonitrile [DOI]
  11. 11 Photo-induced Fluorescence of Fluometuron in a Continuous-flow Multicommutation Assembly [DOI]
  12. 12 IMPACT OF PESTICIDES ON SHALLOW GROUNDWATER QUALITY [DOI]
  13. 13 Photo-Induced Luminescence [DOI]
  14. 14 Tillage and Cover Crop Effects on Saturated and Unsaturated Transport of Fluometuron [DOI]
  15. 15 Determination of the Herbicide Fluometuron by Photo‐induced Chemiluminescence in a Continuous‐flow Multicommutation Assembly [DOI]
  16. 16 Adsorption, dissipation, and movement of fluometuron in three southeastern United States soils [DOI]
  17. 17 Fate of Fluometuron Dissolved in Natural Waters and Exposed to Solar Light
  18. 18 Separation and Purification Technology [DOI]

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