摘要
研究了凤庆绿茶自溶液中对Ａｇ＋的吸附特性。绘制了吸附速度曲线，并求出了Ｌａｎｇ－ｍｕｉｒ和Ｆｒｅｕｎｄｌｉｃｈ方程中的有关参数。考察了温度、ｐＨ值对吸附的影响以及酸、碱和不同配合剂对Ａｇ＋的解吸附作用。结果表明，吸附具有以化学吸附为主的Ｌａｎｇｍｕｉｒ单分子层吸附特征，０．
The adsorption and desorption on“Fengqin”green tea from aqueous solution con-taining Ag-were studied; The adsorption equilibrium constant(b) and maximum adsorptioncapacity(qm )in Langmuir equation and the experimental constants K and 1/n in Freundlichequation were determined. The effects of temperature and pH on the adsorption of Ag-werealso examined.A0. 1mol/L Na2S2O3 solution could quantatively desorb Ag-
出处
《应用化学》
CAS
CSCD
北大核心
1994年第1期80-83,共4页
Chinese Journal of Applied Chemistry
关键词
茶叶
银离子
吸附
溶液
chinese tea leaves,silver ion,adsorption
