Encapsulation of 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedione into the silica gel matrix for capturing uranium(VI) ion species

The thenoyl-trifluoro-acetone (tta: 4,4,4-Trifluoro-1-(2-Thienyl)-1,3-butanedione) has been successfully encapsulated into the silica gel matrix producing a composite of general formula SG-TTA. The tendency of the new composite to remove and capture uranium(VI) ion species has been studied by using batch sorption. The maximum loading of uranium(VI) ion into SG-TTA is 98% upon the experimental of sorption parameters pH(i) > 5, C-i > 25 mg L-1, T = 25 degrees C, dosage = 2 g L-1 and 80 rpm. Thermodynamically, the sorption of U(VI) ion follows the Langmuir isotherm model (ca. R-2 = 1) as a spontaneous process (Delta G = - 34.9593 kJ mol(-1)). Kinetically, the sorption follows a pseudo-second-order model (ca. R-2 = 1) achieving chemisorption process, requiring activation energy (E-a) of 26.23732 kJ mol(-1). The results obtained from this study serve the community and human life in terms of using SG-TTA composite to get rid of the uranium ion from water or even to reuse it peacefully.

Automated summary

The thenoyl-trifluoro-acetone has been successfully encapsulated into silica gel matrix to form composite SG-TTA, which shows high efficiency in removing and capturing uranium (VI) ion species. Experimental data indicates that SG-TTA composite material can efficiently remove uranium ions from water under specific conditions.