Adsorption material of 2,4-embutox in chernozem, preparation method and application thereof
An adsorption material, calcium soil technology, applied in the field of 2,4-D butyric acid adsorption materials in chernozem, can solve the problems of long permeation time, complicated operation, low permeability, etc., and achieve wide linear range and high capture rate Set efficiency, high targeting and excellent effect
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Embodiment 1
[0031] Mix 60 parts of ionic liquid [TBP]Cl with a mass fraction of 24% and 20 parts of KH2PO4 with a mass fraction of 10% to obtain a two-phase extraction system, and then add 20 parts of 45% DIPA-PAM in a mass fraction of the total material -Gel to obtain a gel-like mixture, the above-mentioned gel-like mixture was burned under nitrogen protection for two hours, and the burning temperature was 120°C to form powdery particles, which were then stored in a vacuum oven at 20°C and left to stand for 48 hours, the ionic liquid active adsorption material was prepared, and the single electron microscope picture of the adsorption material is shown in figure 1 .
[0032] The adsorption material was taken out to capture 2,4-D butyric acid in chernozem, and the adsorption material and chernozem were mixed at a volume ratio of 1:3, and placed at 27°C for 30 minutes.
[0033] The permeability of the target before and after capture is recorded in Table 1.
Embodiment 2
[0035] The preparation method of this example is the same as that of Example 1, the only difference is that the type of ionic liquid in the preparation process is different. In this example, the ionic liquid is changed to [2-aemim][PF6](1-aminoethyl-3- Methylimidazole hexafluorophosphate), and the rest of the conditions were unchanged, and the permeability of the target before and after capture was recorded in Table 1.
Embodiment 3
[0037] The preparation method of this example is the same as Example 1, the only difference is that the type of ionic liquid in the preparation process is different, in this example, the ionic liquid is changed to [cmmim][PF6](1-acetoxy-3-methylimidazole hexafluorophosphate), and the rest of the conditions were unchanged, and the permeability of the target before and after capture was recorded in Table 1.
[0038] It can be seen from the above examples and Table 1 that the permeability of 2,4-D butyric acid used to separate chernozem is 99.6%, 74.3%, and 59.3%, respectively, by changing the composition of the ionic liquid in the adsorption material. Therefore, when [TBP]Cl was used as the ionic liquid, the permeability of 2,4-D butyric acid in chernozem was the largest and the penetration effect was the best.
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