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- E-ISSN 2288-8985
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Adsorption of uranium(VI) ion on the nitrogen-donor macrocyclic synthetic resin adsorbent
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2008, v.21 no.2, pp.109-116
(2008). Adsorption of uranium(VI) ion on the nitrogen-donor macrocyclic synthetic resin adsorbent. Analytical Science and Technology, 21(2), 109-116.
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Abstract
1%, 2%, 6% 및 12%의 가교도를 가진 스틸렌(제4류 위험물) 디비닐벤젠 공중합체에 1-aza-18- crown-6 거대고리 리간드를 치환반응으로 결합시켜 수지들을 합성하였다. 이들 수지의 합성은 염소 함량, 원소 분석, 열중량 분석, 전자 현미경, 그리고 IR-스펙트럼으로 확인하였다. 수지 흡착제에 의한 우라늄 이온의 흡착에 미치는 pH, 시간, 수지의 가교도 그리고 용매의 유전상수에 따른 영향들을 조사하였다. 우라늄 이온은 pH 3 이상에서 큰 흡착율을 보였으며, 금속 이온들의 흡착 평형은 2 시간 정도였다. 한편, 에탄올 용매에서 수지에 대한 흡착 선택성은 UO2 2+ > Zn2+ > Lu3+ 이온이었고, 우라늄 이온의 흡 착력은 1%, 2%, 6% 및 12%의 가교도 순 이었으며, 용매의 유전상수 크기에 반비례하였다.
- keywords
- 1-aza-18-crown-6, macrocyclic ligand, crosslink, styrene divinylbenzene (DVB)
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