Thermally Activated Brown and Black Coals as the Sorbents of Chromium(VI) from Aqueous Solutions

被引：0
|
作者：
V. V. Golovina
A. O. Eremina
N. V. Chesnokov
A. A. Sobolev
机构：
[1] Russian Academy of Sciences,Institute of Chemistry and Chemical Technology, Siberian Branch
来源：
Solid Fuel Chemistry | 2018年 / 52卷
关键词：
adsorption; kinetics; isotherm; pH of aqueous solution; chromium(VI) ions;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Porous materials prepared from brown and black coals were used as sorbents for the extraction of chromium(VI) from aqueous solutions. They were compared with an AG-3 commercial sorbent. The effect of the acidity of reaction medium on the adsorption of chromium(VI) was established. The extraction of Cr(VI) from aqueous solutions reached a maximum in a range of pH 1.5–2.0. A kinetic study made it possible to determine equilibration times in the porous material–chromium(VI) solution systems.
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页码：240 / 246
页数：6
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