Chinese Journal of Applied Chemistry ›› 1998, Vol. 0 ›› Issue (5): 56-58.

• Full Papers • Previous Articles     Next Articles

Effect of Tyrosine on the Interaction Between Cu(Ⅱ) and Kaolinite

Cheng Fengyun1, Zhang Zhengbin2, Tang Zhiyuan1   

  1. 1. Department of Applied Chemistry, Tianjin University, Tianjin 300072;
    2. Institute of Marine Chemistry, Qingdao Ocean University, Qingdao
  • Received:1997-12-02 Revised:1998-04-27 Published:1998-10-10 Online:1998-10-10

Abstract: The interaction among copper ion, tyrosine and kaolinite has been investigated. The effect of tyrosine on the ion exchange percentage of copper ions adsorbed showen by the kaolinite-pH curve, E(%)-pH curve, is found to be characterized by the left-right vacillation. It is suggested that a type Ⅱ ternary surface complex is formed and its stability constant is calculated to be 1×101.13.

Key words: tyrosine, copper ion, kaolinite, ternary complex, stability constant, liquid/solid interface action