원문정보
초록
영어
Resins were synthesized by mixing N-phenylaza-15-crown-5 macrocyclic ligand attached to styrene (2th petroleum in 4th class hazardous materials) divinylbenzene (DVB) copolymer with crosslink of 1%, 2%, 6%, and 12% by substitution reaction. The synthesis of these resins was confirmed by content of chlorine, element analysis, thermo gravimetric analysis (TGA), surface area, and IR-spectroscopy. The effects of pH, equilibrium arrival time, dielectric constant of solvent and crosslink on adsorption of metal ions by the synthetic resin adsorbent were investigated. The metal ions were showed fast adsorption on the resins above pH 4. The optimum equilibrium time for adsorption of metallic ions was about two hours. The adsorption selectivity determined in ethanol was in increasing order uranium (VI) > zinc (II) > europium (III) ions. The uranium ion adsorbed in the order of 1%, 2%, 6%, and 12% crosslink resin and adsorption of resin decreased in proportion to the order of dielectric constant of solvents.
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. Results and Discussion
3.1. Confirmation of Resin
3.2. Effects According to pH
3.3. Effects According to Equilibrium Arrival Time
3.4. Effects According to Resin Crosslink
3.5. Effects According to Solvent Dielectric Constant
4. Conclusion
References