物理化学学报 >> 1995, Vol. 11 >> Issue (02): 157-161.doi: 10.3866/PKU.WHXB19950212

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活性炭自溶液吸附锌(II)离子及其配合物

木冠南, 杨春芬   

  1. 云南大学化学系|昆明 650091
  • 收稿日期:1993-10-25 修回日期:1994-03-07 发布日期:1995-02-15
  • 通讯作者:

Adsorption of Zinc(II) Ion and its Complexes from Solution by Activatied Charcoal

Mu Guan-Nan, Yang Chun-Fen   

  1. Department of Chemistry,Yunnan University,Kunming 650091
  • Received:1993-10-25 Revised:1994-03-07 Published:1995-02-15
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关键词: 活性炭, 吸附, 锌离子, 配合物, 氧化-负离子化法

Abstract:

The adsorption characteristics of Zn2+ from electrolytic solution by activated charcoal have been investigated. It was found that the amount of adsorption of Zn2+depends mainly on pH value of the solution, added inorganic ions and containing Oxygen groups on the surface. The activated charcoal was treated with oxidation-negative ionizing (OA) method in order to produce more containing oxygen groups on the surface. The adsorption amount of Zn2+ on the treated activated charcoal increased remarkbly. It was also found that more times the activated charcoal was treated, the more powerful the activity of the surface, and the larger the adsorption the amount of Zn2+, so the charged grorps on the surface of activated charcoal are considered as the main adsorption activated sites for inorganic ions. The adsorption characteristics of various complexes of Zn2+ on the surface of activated charcoal have also been investigated. Three types of adsorption configuration of the complexes of Zn2+ on the surface of activated charcoal were suggested according to the experimental results.

Key words: Activated carbon, Adsorption, Zinc Ion(II), Complex, Method of Oxidation-negative ionizing