Chinese Journal of Applied Chemistry ›› 1994, Vol. 0 ›› Issue (1): 80-83.

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The Adsorption of Ag+ in Aqueous Solution by Chinese Green Tea“Fengqin”

Yang Zhongmin, Yang Chunfen, Mu Guannan   

  1. Department of Chemistry, Yunnan University, Kunming 650091
  • Received:1992-11-16 Revised:1993-07-17 Published:1994-02-10 Online:1994-02-10

Abstract: The adsorption and desorption on“Fengqin”green tea from aqueous solution containing Ag+ were studied; The adsorption equilibrium constant(b) and maximum adsorption capacity(qm)in Langmuir equation and the experimental constants K and 1/n in Freundlich equation were determined. The effects of temperature and pH on the adsorption of Ag+ were also examined.A 0. 1mol/L Na2S2O3 solution could quantatively desorb Ag+.

Key words: chinese tea leaves, silver ion, adsorption