Encapsulation of 4,4,4-trifluoro-1- ion species

• Published in: Journal of radioanalytical and nuclear chemistry 2021-08, Vol.329 (2), p.865
• Main Authors: Al-Anber, Mohammed A, Al-Adaileh, Neda'a, Al-Momani, Idrees F, Al-Anber, Zaid
• Format: Article
• Language: English
• Subjects: Analysis; Silica; Uranium
• ISSN: 0236-5731
• DOI: 10.1007/s10967-021-07811-y

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.sub.i > 5, C.sub.i > 25 mg L.sup.-1, T = 25 °C, dosage = 2 g L.sup.-1 and 80 rpm. Thermodynamically, the sorption of U(VI) ion follows the Langmuir isotherm model (ca. R.sup.2 = 1) as a spontaneous process ([DELTA]G = - 34.9593 kJ mol.sup.-1). Kinetically, the sorption follows a pseudo-second-order model (ca. R.sup.2 = 1) achieving chemisorption process, requiring activation energy (E.sub.a) of 26.23732 kJ mol.sup.-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.