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Citation: Mu Guan-Nan, Yang Chun-Fen. Adsorption of Zinc(II) Ion and its Complexes from Solution by Activatied Charcoal[J]. Acta Physico-Chimica Sinica, ;1995, 11(02): 157-161. doi: 10.3866/PKU.WHXB19950212 shu

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

1.
Department of Chemistry,Yunnan University,Kunming 650091

Received Date: 25 October 1993
Available Online: 15 February 1995

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