Duygu ALPASLAN, Nahit AKTAŞ, Selehattin YİLMAZ, Nurettin SAHİNER, Olgun GÜVEN

Sulu ortamlardan uranil iyonu kazanımı için p akrilonitril-ko-akrilamit hidrojellerinin hazırlanması

D eğişik miktarlarda akrilonitril AN ve akrilamit AAm monomerleri içeren poli akrilonitril-ko-akrilamit p AN-co-AAm hidrojelleri eş zamanlı redoks ve microemülsiyon polymerizasyon teknikleri kullanılarak gerçekleştirilmiştir. Hazırlanan hidrojeller sulu ortamdan uranil iyonları soğurumu için amidoxime reaksiyonuna tabii tutulmuşlardır. P AN-co-AAm 0.25:1 mole oranında tarafından batch tipi UO2+ iyonu çalışmaları yapılmış ve kuru hidrojel başınan 220 mg/g soğurma kapasitesi bulunmuştur. En fazla uranil iyonu soğurma kapasitesi pH 4 de gram kuru jel başına 277 mg/g olarak gerçekleştirilmiştir

Anahtar Kelimeler:

Hidrojel, amidoksimasyon, uranil iyonu soğurumu, p AN-ko-AAm

The Preparation of p acrylonitrile-co- acrylamide hydrogels for uranyl ion recovery from aqueous environments

The synthesis of poly acrylonitrile-co-acrylamide p AN-co-AAm hydrogels with different amounts of acrylonitrile AN and acrylamide AAm monomers were carried out by concurrent use of redox and microemulsion polymerization techniques. The prepared hydrogels were amidoximated for sorption of uranyl ion from aqueous medium. Batch type UO2 2+ ion sorption by p AN-co-AAm 0.25:1 mole ratio was carried out and an sorption capacity of 220 mg UO2 2+ mg/g dried hydrogel was found. The highest amount of UO22+ ion sorption, 277 mg/g dry gel was accomplished at pH 4.

Keywords:

Hydrogel, amidoximation, uranyl ion sorption, p AN-co-AAm,

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