Adsorption of Cupric Ions on Chitosan

키토산을 이용한 중금속(Cu2+) 흡착

  • Kim, Tae Young (Department of Chemical Engineering, Chonnam National University) ;
  • Kim, Kyoung Jin (Department of Chemical Engineering, Chonnam National University) ;
  • Moon, Hee (Faculty of Applied Chemistry, Chonnam National University) ;
  • Yang, Jai Ho (Department of Chemical Engineering, Chonnam National University)
  • 김태영 (전남대학교 화학공학과) ;
  • 김경진 (전남대학교 화학공학과) ;
  • 문희 (전남대학교 응용화학부) ;
  • 양재호 (전남대학교 화학공학과)
  • Received : 1998.09.18
  • Accepted : 1998.11.21
  • Published : 1999.04.10


The chitosan solution was prepared by dissolving chitosan into 2 wt % aqueous acetic acid solution and then chitosan beads were made by sol-gel method. The average molecular weight and the degree of deacetylation of the chitosan used here were determined to be $8.2{\times}10^5$ and 85%, respectively. chitosan beads were highly porous which was confirmed by SEM photography and BET. Adsorption equilibrium of $Cu^{2+}$ on porous chitosan beads could be represented by Sips equation. The diffusion of cupric ions in the chitosan beads could be explained by pore and surface diffusion mechanisms. Adsorption dynamics of $Cu^{2+}$ in fixed-bed could be simulated by linear driving force approximation (LDFA). It was proven that porous chitosan beads manufactured in this work are good adsorbents for the removal of $Cu^{2+}$.


Chitosan;Chitosan Bead;Adsorption;Cupric Ions


Supported by : 전남대학교


  1. J. of Korea Ind. & Eng. Chem. v.4 C. G. Park;Y. M. Lee;J. H. Kim;C. N. Jeong
  2. J. Phys. Chem. v.40 G. L. Clark;A. F. Smith
  3. J. of Biomed. Mater. Res. v.20 K. Nishimura
  4. Chitin R. A. A. Muzzarelli
  5. Chitin Chemistry G. A. F. Roberts
  6. Polymer(korea) v.23 K. S. Choi;Y. B. Ryu
  7. Chem. Engng Sci. v.43 H. Moon;C. Tien
  8. Natural Chelating Polymers R. A. A. Muzzarelli
  9. J. Appl. Polym. Sci. v.18 M. S. Masri;F. W. Reuter;M. Friedman
  10. Separation and Purification: Critical Needs and Opportunities: Commitee on Separation Science and Technology C. J. King
  11. Ind. Eng. Chem. Res. v.32 G. L. Rorrer;T. Y. Hsien
  12. J. of Korean Ind. & Eng. Chem. v.5 S. K. Cho;S. J. Kim;B. O. Jung;J. J. Kim;K. S. Choi;Y. M. Lee
  13. 첨단기술의 신소재 키틴과 키토산 Y. B. Kim