Sorption of copper(II) ions from aqueous solution by activated carbon BAU-A and coal sorbent MIU-S. The relationship between the structure of sorbents and their sorption properties

被引：2
|
作者：
Linnikov, O. D. [1 ]
Rodina, I. V. [1 ]
Baklanova, I. V. [1 ]
Suntsov, A. Yu. [1 ]
Tyutyunnik, A. P. [1 ]
机构：
[1] Russian Acad Sci, Ural Branch, Inst Solid State Chem, 91 Pervomayskaya St, Ekaterinburg 620990, Russia
来源：
WATER SCIENCE AND TECHNOLOGY | 2022年 / 85卷 / 10期
关键词：
carbon sorbents; copper(II) ions; IR and Raman spectra; Langmuir; sorption; HEAVY-METAL IONS; ADSORPTION; REMOVAL; ADSORBENTS; NANOTUBES; BENTONITE; CU(II);
D O I：
10.2166/wst.2022.148
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The sorption of copper(II) ions in a wide range of pH by two Russian carbon sorbents BAU-A and MIU-S was studied. Sorbents varied in structure, surface area, pH of the point of zero charge (pH(ZPC)), and graphitization degree. The sorption studies were conducted in batch mode. The removal of copper(ll) ions from a solution at pH 4, 5, 6, and 6.7 is described by the classical adsorption isotherms of Freundlich, Langmuir, and Dubinin - Radushkevich. With an increase in pH from 4 to 6.7, the sorption capacity of sorbents increases, from 0.910 to 7.163 mg/g for BAU-A, and from 0.265 to 3.307 mg/g for MIU-S. The relationship between the degree of crystallinity and the sorption properties of sorbents has been established.
引用
收藏
页码：3088 / 3106
页数：19
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