Adsorption of Phenol by Activated Carbons Based on Fossil Coals of Various Degrees of Metamorphism

被引:0
|
作者
Tamarkina, Yu, V [1 ]
Anishchenko, V. M. [1 ]
Redko, A. M. [1 ]
Kucherenko, V. A. [1 ]
机构
[1] Natl Acad Sci Ukraine, Litvinenko Inst Phys Organ Chem & Coal Chem, UA-02160 Kiev, Ukraine
关键词
coal; alkaline activation; activated carbon; phenol adsorption; LOW-COST; AQUEOUS-SOLUTIONS; REMOVAL; ADSORBENTS;
D O I
10.3103/S0361521921030101
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The adsorption of phenol by activated carbons obtained by the alkaline thermolysis (KOH, 800 degrees C) of fossil coals of various degrees of metamorphism (C-daf = 70.4-95.6%) was studied. Kinetic dependences and adsorption isotherms were obtained at initial concentrations of <= 3 mg/cm(3) (25 degrees C). The rate constants of absorption of the adsorbate, maximum and specific capacities for phenol, and their dependences on C-daf were determined. The main processes of the interaction of phenol with surface adsorption centers are discussed.
引用
收藏
页码:133 / 141
页数:9
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