Degradation of 2,4-dichlorophenoxyacetic acid by ionizing radiation: influence of oxygen concentration

Reaction Kinetic Model for 2,4-Dichlorophenoxyacetic Acid Decomposition in Aqueous Media Including Direct Photolysis, Direct Ozonation, Ultraviolet C, and pH Enhancement

“…From these data, with the available experimental information, it is possible to solve the full system of differential equations together with a non-linear parameter estimator and, as a result of the optimization, obtain the values of k 21 , k 22 and k 23 . From the optimization program, the following values for the three reactions were obtained: ozone possesses a high selectivity in its oxidative reactions and there is no doubt that the pollutant chemical structure requires the occurrence of much more active species for its entire degradation.…”

“…When using t-BuOH as scavenger, it was possible to eliminate the oxidation through the route with very active radicals and, therefore, the two effects could be separated. The reaction constants previously obtained (called k 21 , k 22 and k 23 ) are added to the mechanism described in Table 2 and in this case the reaction constants will be estimated exclusively for the interaction of the •OH radicals with 2,4-D, 2,4-DCP and 2-CHQ. Considering the reactions (I, J, K) as steps 24-26:…”

UV induced degradation of herbicide 2,4-D: kinetics, mechanism and effect of various conditions on the degradation

“…Ionizing radiation is also an efficient means for oxidative degradation of 2,4-D [13]. Compared to other AOTs, this technique has the advantage that no chemicals have to be added to the water samples.…”

The Synthesis of Zinc(II) and Cadmium(II) 2,4-Dichlorophenoxyacetates in Water–Methanol Environment. Structure and Properties of Polymeric [Zn(2,4-D)2(MeOH)2] n and [Cd(2,4-D)2(H2O)2] n

“…The 2,4-D is a peroxisome proliferator [15] and in plant cells it causes the abnormality of mitosis and meiosis [16]. Due to it relatively high solubility [17] it can be easily applied to the soil as we as the aquatic areas.…”