Scavenging of UO2 2+ using 4-sulfonic calix[6]arene in the presence of goethite

Jinho Jung, Y. H. Cho, P. S. Hahn

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The scavenging of UO2 2+ using 4-sulfonic calix[6]arene in the presence of a strong adsorbent was studied as a function of pH. The adsorbent selected was goethite because of its strong affinity for UO2 2+ and its abundance in natural soils. In order to understand the underlying chemistry of the scavenging process, the adsorption of UO2 2+ and 4-sulfonic calix[6]arene onto goethite, respectively, and the extraction of adsorbed UO2 2+ from goethite surface were modeled using the triple-layer model. The model well explained the pH dependence of the adsorption and extraction processes. This work showed that maximum extraction was obtained around pH 10.5 in the presence of 12 g/l goethite in the case of a 1:3 T1(VI)):T(calixarene) ratio.

Original languageEnglish
Pages (from-to)635-639
Number of pages5
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume242
Issue number3
Publication statusPublished - 1999 Jan 1
Externally publishedYes

Fingerprint

Scavenging
Adsorbents
Adsorption
Calixarenes
Soils
goethite
calix(6)arene

ASJC Scopus subject areas

  • Analytical Chemistry
  • Inorganic Chemistry
  • Nuclear Energy and Engineering

Cite this

Scavenging of UO2 2+ using 4-sulfonic calix[6]arene in the presence of goethite. / Jung, Jinho; Cho, Y. H.; Hahn, P. S.

In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 242, No. 3, 01.01.1999, p. 635-639.

Research output: Contribution to journalArticle

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