Ion Imprinted Affinity Cryogels for the Selective Adsorption Uranium in Real Samples
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Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Jihad Daneshgahi
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this article, selective adsorption of U(VI) in aqueous solutions in the presence various lanthanide ions by using U(VI)-imprinted cryogel polymer was conducted. For this purpose, the prepared pHEMA-(MAH)(3)-U(VI) cryogel polymer by free radical polymerization method. U(VI) was desorbed with 5.0 mol/L HNO3 and thus U(VI)-imrinted were created onto p-HEMA-(MAH)(3) cryogel polymer. To determine the optimum conditions, in the process of selective adsorption of U(VI) ion to U(VI)-imprinted p-HEMA-(MAH)(3) cryogel polymer, some parameters such as pH, flow rate, initial U(VI) concentration were investigated. Under the optimum conditions, the maximum adsorption capacity was obtained as 74.80 mg/g. Selectivity studies were also carried out in the presence of Nd(III), La(III) and Y(III) ions using U(VI)-imprinted p-HEMA-(MAH)(3) cryogel polymer. The obtained adsorption order under competitive conditions was U(VI) > La(III) > Y(III) > Nd(III).
Açıklama
Anahtar Kelimeler
U(Vi)-Imprinted Cryogel Polymer, P-Hema-(Mah)(3), Selective Adsorption, Purification
Kaynak
Iranian Journal of Chemistry & Chemical Engineering-International English Edition
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
38
Sayı
6
