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- E-ISSN 2288-8985
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A Study on the Sorption Behavior of U(VI) ion by Arsenazo I-XAD-2 Chelating Resin
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1993, v.6 no.5, pp.489-499
Lee,
C., Lee,
S., Lim,
J., Eom,
T., Kim,
I., Kang,
C., &
Lee,
W.
(1993). A Study on the Sorption Behavior of U(VI) ion by Arsenazo I-XAD-2 Chelating Resin. Analytical Science and Technology, 6(5), 489-499.
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Abstract
Some sorption behaviors of U(VI) ion on Arsenazo I-XAD-2 chelating resin were investigated. This chelating resin was synthesized by the diazonium coupling of Amberlite XAD-2 resin with Arsenzo I chelating reagent and characterized by elementary analysis method and IR spectrometry. The optimum conditions for the sorption of U(VI) ion were examined with respect to pH, U(VI) ion concentration and shaking time. Total sorption capacity of this chelating resin on U(VI) ion was 0.39mmol U(VI)/g resin in the pH range of 4.0~4.5. This chelating resin was showed increased sorption capacity on the increased pH value. It was confirmed that sorption mechanism of U(VI) ion on the Arsenazo I-XAD-2 chelating resin was competition reacting between U(VI) ion and <TEX>$H^+$</TEX> ion. Breakthrough volume and overall capacity of U(VI) ion measured by column were was 600 ml and 0.38 mmol U(VI)/g resin, respectively. The desorption of U(VI) ion was showed recovery of 90~96% using 3M <TEX>$HNO_3$</TEX> and 3M <TEX>$Na_2CO_3$</TEX> as a desorption solution. The separation and concentration of U(VI) ion from natural water and sea water was performed successfully by Arsenazo I-XAD-2 chelating resin.
- keywords
- Arsenazo I-XAD-2, Chelating Resin
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