Adsorption of Phenol by Activated Carbons Based
on Fossil Coals of Various Degrees of Metamorphism
Yu. V. Tamarkinaa,*, V. M. Anishchenkoa,**, A. M. Redkoa,***, and V. A. Kucherenkoa,****
a Litvinenko Institute of Physical Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine,
Kiev, 02160 Ukraine
Correspondence to: *e-mail: Tamarkina@nas.gov.ua,
Correspondence to: **e-mail: Anischenko@nas.gov.ua,
Correspondence to: ***e-mail: A.M.Redko@nas.gov.ua,
Correspondence to: ****e-mail: V.O.Kucherenko@nas.gov.ua
Received 1 October, 2020
Abstract—The adsorption of phenol by activated carbons obtained by the alkaline thermolysis (KOH, 800°C) of fossil coals of various degrees of metamorphism (Cdaf = 70.4–95.6%) was studied. Kinetic dependences and adsorption isotherms were obtained at initial concentrations of ≤3 mg/cm3 (25°C). The rate constants of absorption of the adsorbate, maximum and specific capacities for phenol, and their dependences on Cdaf were determined. The main processes of the interaction of phenol with surface adsorption centers are discussed.
Keywords: coal, alkaline activation, activated carbon, phenol adsorption
DOI: 10.3103/S0361521921030101