Properties of Uranium(VI) Adsorption by Methyl 3-O-Acetyl-5,6-dideoxy-(S)-1,2-trichloroethylidene-α- d -xylo-hept-5(E)-eno-1,4-furano-uronate
Makaleler > Tam Makale · 2011
Yazarlar: Sabriye YUŞAN, Nilgun Yenil, Selda Kuzu, Mahmut Ali Asker ASLANİ
Journal of Chemical & Engineering Data, SCI Expanded İndekslerine Giren Dergi, Uluslararası, Wos, 2011, cilt 56, ss 2013-2019
DOI: 10.1021/je101030r
Özet
In this study the effect of adsorption parameters such as pH, concentration of uranium(VI), shaking time, and temperature on methyl 3- O -acetyl-5,6-dideoxy-( S )-1,2-trichloroethylidene-α- d -xylo-hept-5(E)-eno-1,4-furano-uronate (MOADDTCEXHEFU) for U(VI) ions have been investigated. The adsorption data for uranium(VI) were well-fitted by the Langmuir isotherm. Thermodynamic analysis showed that the value of Δ G o is negative and Δ H o and Δ S o are positive. These results and a Fourier transform infrared (FTIR) spectrum analysis show that uranium(VI) ions were successfully bonded to this molecule. The affinity of MOADDTCEXHEFU to Th 4+, Ba 2+, and also Mg 2+ is about 10 times higher than uranium(VI).