Sorption behaviour of uranium(VI) with N,N-dibutyl-N '-benzoylthiourea Impregnated in Amberlite XAD-16

MERDİVAN M., Duz M., Hamamci C.

TALANTA, cilt.55, sa.3, ss.639-645, 2001 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 55 Sayı: 3
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1016/s0039-9140(01)00476-3
  • Dergi Adı: TALANTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.639-645
  • Anahtar Kelimeler: uranium, DBBT, impregnation, Amberlite XAD-16, N-DODECYLAMMONIUM CHLORIDE, EXTRACTION CHROMATOGRAPHY, MACROMOLECULAR RESIN, DIVALENT METALS, ACIDIC MEDIA, SEPARATION, PRECONCENTRATION, ACTINIDES
  • Dokuz Eylül Üniversitesi Adresli: Hayır

Özet

The sorption of U(VI) by N, N-dibutyl, N'-benzoylthiourea (DBBT) impregnated resin has been studied. DBBT impregnated resin was prepared by direct adsorption of chelating ligand onto macroporous support, Amberlite XAD-16. The adsorption of DBBT on the macroporous support is shown by FTIR spectroscopy to be the result of only weak chelating ligand-support interactions. Parameters such as the pH effect on the sorption of uranium, the sorption capacity of the impregnated resin, the stripping of uranium and the effect of coexisting ions were investigated by batch experiments. The results demonstrated that uranium(VI) ions, at pH 4.5-7 could be sorbed completely using 0.1 g Amberlite XAD-16 resin loaded with DBBT. The sorption capacity of the impregnated resin is 0.90 mmol uranium(VI) g(-1). Quantitative recovery of U(VI) is achieved by stripping with 0.1 M HNO3. The method was applied to the determination of uranium in synthetic samples. The precision of the method was 2.4 RSD% in a concentration of 1.20 mug ml(-1) for ten replicate analysis. (C) 2001 Elsevier Science B.V. All rights reserved.