PVC-Zeolite composite was prepared by immobilizing zeolite with polyvinyl chloride (PVC). The prepared PVC-Zeolite beads were characterized by using X-ray diffractometer (XRD), fourier transform infrared spectrometer (FTIR), thermo gravimetric analyzer (TGA), and scanning electron microscopy (SEM). The removal properties of Sr and Cs ions from aqueous solution were investigated in batch experiment. The removal efficiencies of Sr and Cs ions by the PVC-Zeolite beads were dependent on the initial pH of solution. The removal efficiencies sharply increased at below pH 4 and was kept constant at pH 4 or more. The adsorption kinetics of Sr and Cs ions by the PVC-Zeolite beads were fitted well by the pseudosecond- order model (r2>0.99) more than pseudo-first-order model. The maximum adsorption capacities of Sr and Cs ions calculated from Langmuir isotherm model were 39.37 mg/g and 55.87 mg/g, respectively.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 실험재료
  2.2. 실험방법
 3. 결과 및 고찰
  3.1. 흡착제의 특성 분석
  3.2. pH의 영향
  3.3. 시간에 따른 흡착능 변화
  3.4. 흡착속도 모델
  3.5. 흡착 등온식
 4. 결론
 REFERENCE

• 이창한(부산가톨릭대학교 환경행정학과) | Chang-Han Lee (Department of Environmental Adminstration, Catholic University of Pusan)
• 이민규(부경대학교 화학공학과) | Min-Gyu Lee (Department of Chemical Engineering, Pukyong National University)
• 민성기(부경대학교 고분자공학과) | Seong-Kee Min (Department of Polymer Engineering, Pukyong National University) Corresponding author