원문정보
초록
영어
Synthetic resins were combined 1-aza-12-crown-4 macrocyclic ligand with styrene divinylbenzene copolymer having 1%, 2%, 8%, and 16% crosslink by a substitution reaction. These synthetic resins were confirmed by chlorine content, elementary analysis, SEM, surface area, and IR-spectrum. As the results of the effects of pH, crosslink of synthetic resin, and dielectric constant of a solvent on metal ion adsorption for resin adsorbent, the metal ions showed high adsorption at pH 3 or over. Adsorption selectivity for the resin in ethanol solvent was the order of uranium (UO2 2+) > cobalt (Co2+) > dysprosium (Dy3+) ion, adsorbability of the metal ion was the crosslink in order of 1%, 2%, 8%, and 16% and it was increased with the lower dielectric constant. In addition, theses metal ions could be separated in the column with 1% crosslink resin by using nitric acid (pH 2.0) as an eluent.
목차
1. Introduction
2. Experimental Section
2.1. Materials
2.2. Synthesis of Styrene-DVB Copolymer
2.3. Chlorination of Copolymer
2.4. Function Reaction of Copolymer
2.5. Experimental Method
3. Result and Discussion
3.1. Confirmation of Resin
3.2. Effects of pH
3.3. Effects of Resin Crosslink
3.4. Effects of Solvent Dielectric Constant
3.5. Separation of Metal Ions
4. Conclusion
References